Exhibit q

                                POWER OF ATTORNEY


The undersigned hereby constitutes and appoints Elizabeth L. Belanger, Adam M.
Kanzer, Carole M. Laible, Steven D. Lydenberg, and Christina M. Povall, and each
of them, with full powers of substitution as her true and lawful attorneys and
agents to execute in her name and on her behalf in any and all capacities the
Registration Statements on Form N-1A, and any and all amendments thereto, filed
by Domini Social Investment Trust, Domini Institutional Trust, Domini Advisor
Trust (each, a "Trust"), and Domini Social Index Portfolio (the "Portfolio"), or
the Registration Statement(s), and any and all amendments thereto, filed by any
other investor (collectively with each Trust, the "Investors") in the Portfolio
(insofar as certain series of each of the Investors invest all their assets in
the Portfolio), with the Securities and Exchange Commission under the Investment
Company Act of 1940, as amended, and/or the Securities Act of 1933, as amended,
and any and all instruments which such attorneys and agents, or any of them,
deem necessary or advisable to enable any of the Investors or the Portfolio, as
applicable, to comply with such Acts, the rules, regulations, and requirements
of the Securities and Exchange Commission, and the securities or Blue Sky laws
of any state or other jurisdiction, and the undersigned hereby ratifies and
confirms as her own act and deed any and all acts that such attorneys and
agents, or any of them, shall do or cause to be done by virtue hereof. Any one
of such attorneys and agents has, and may exercise, all of the powers hereby
conferred.

IN WITNESS WHEREOF, the undersigned has executed this instrument as of the 22nd
day of October, 2004.


                                       /s/ Amy L. Domini
                                       -----------------------------------------
                                       Amy L. Domini



                                POWER OF ATTORNEY


The undersigned hereby constitutes and appoints Elizabeth L. Belanger, Amy L.
Domini, Adam M. Kanzer, Steven D. Lydenberg, and Christina M. Povall, and each
of them, with full powers of substitution as her true and lawful attorneys and
agents to execute in her name and on her behalf in any and all capacities the
Registration Statements on Form N-1A, and any and all amendments thereto, filed
by Domini Social Investment Trust, Domini Institutional Trust, Domini Advisor
Trust (each, a "Trust"), and Domini Social Index Portfolio (the "Portfolio"), or
the Registration Statement(s), and any and all amendments thereto, filed by any
other investor (collectively with each Trust, the "Investors") in the Portfolio
(insofar as certain series of each of the Investors invest all their assets in
the Portfolio), with the Securities and Exchange Commission under the Investment
Company Act of 1940, as amended, and/or the Securities Act of 1933, as amended,
and any and all instruments which such attorneys and agents, or any of them,
deem necessary or advisable to enable any of the Investors or the Portfolio, as
applicable, to comply with such Acts, the rules, regulations, and requirements
of the Securities and Exchange Commission, and the securities or Blue Sky laws
of any state or other jurisdiction, and the undersigned hereby ratifies and
confirms as her own act and deed any and all acts that such attorneys and
agents, or any of them, shall do or cause to be done by virtue hereof. Any one
of such attorneys and agents has, and may exercise, all of the powers hereby
conferred.

IN WITNESS WHEREOF, the undersigned has executed this instrument as of the 22nd
day of October, 2004.


                                       /s/ Carole M. Laible
                                       -----------------------------------------
                                       Carole M. Laible



                                POWER OF ATTORNEY


The undersigned hereby constitutes and appoints Elizabeth L. Belanger, Amy L.
Domini, Adam M. Kanzer, Carole M. Laible, and Steven D. Lydenberg, and each of
them, with full powers of substitution as her true and lawful attorneys and
agents to execute in her name and on her behalf in any and all capacities the
Registration Statements on Form N-1A, and any and all amendments thereto, filed
by Domini Social Investment Trust, Domini Institutional Trust, Domini Advisor
Trust (each, a "Trust"), and Domini Social Index Portfolio (the "Portfolio"), or
the Registration Statement(s), and any and all amendments thereto, filed by any
other investor (collectively with each Trust, the "Investors") in the Portfolio
(insofar as certain series of each of the Investors invest all their assets in
the Portfolio), with the Securities and Exchange Commission under the Investment
Company Act of 1940, as amended, and/or the Securities Act of 1933, as amended,
and any and all instruments which such attorneys and agents, or any of them,
deem necessary or advisable to enable any of the Investors or the Portfolio, as
applicable, to comply with such Acts, the rules, regulations, and requirements
of the Securities and Exchange Commission, and the securities or Blue Sky laws
of any state or other jurisdiction, and the undersigned hereby ratifies and
confirms as her own act and deed any and all acts that such attorneys and
agents, or any of them, shall do or cause to be done by virtue hereof. Any one
of such attorneys and agents has, and may exercise, all of the powers hereby
conferred.

IN WITNESS WHEREOF, the undersigned has executed this instrument as of the 22nd
day of October, 2004.


                                       /s/ Julia Elizabeth Harris
                                       -----------------------------------------
                                       Julia Elizabeth Harris



                               POWER OF ATTORNEY


The undersigned hereby constitutes and appoints Elizabeth L. Belanger, Amy L.
Domini, Adam M. Kanzer, Carole M. Laible, and Steven D. Lydenberg, and each of
them, with full powers of substitution as her true and lawful attorneys and
agents to execute in her name and on her behalf in any and all capacities the
Registration Statements on Form N-1A, and any and all amendments thereto, filed
by Domini Social Investment Trust, Domini Institutional Trust, Domini Advisor
Trust (each, a "Trust"), and Domini Social Index Portfolio (the "Portfolio"), or
the Registration Statement(s), and any and all amendments thereto, filed by any
other investor (collectively with each Trust, the "Investors") in the Portfolio
(insofar as certain series of each of the Investors invest all their assets in
the Portfolio), with the Securities and Exchange Commission under the Investment
Company Act of 1940, as amended, and/or the Securities Act of 1933, as amended,
and any and all instruments which such attorneys and agents, or any of them,
deem necessary or advisable to enable any of the Investors or the Portfolio, as
applicable, to comply with such Acts, the rules, regulations, and requirements
of the Securities and Exchange Commission, and the securities or Blue Sky laws
of any state or other jurisdiction, and the undersigned hereby ratifies and
confirms as her own act and deed any and all acts that such attorneys and
agents, or any of them, shall do or cause to be done by virtue hereof. Any one
of such attorneys and agents has, and may exercise, all of the powers hereby
conferred.

IN WITNESS WHEREOF, the undersigned has executed this instrument as of the 22nd
day of October, 2004.


                                       /s/ Kirsten S. Moy
                                       -----------------------------------------
                                       Kirsten S. Moy



                                POWER OF ATTORNEY


The undersigned hereby constitutes and appoints Elizabeth L. Belanger, Amy L.
Domini, Adam M. Kanzer, Carole M. Laible, and Steven D. Lydenberg, and each of
them, with full powers of substitution as his true and lawful attorneys and
agents to execute in his name and on his behalf in any and all capacities the
Registration Statements on Form N-1A, and any and all amendments thereto, filed
by Domini Social Investment Trust, Domini Institutional Trust, Domini Advisor
Trust (each, a "Trust"), and Domini Social Index Portfolio (the "Portfolio"), or
the Registration Statement(s), and any and all amendments thereto, filed by any
other investor (collectively with each Trust, the "Investors") in the Portfolio
(insofar as certain series of each of the Investors invest all their assets in
the Portfolio), with the Securities and Exchange Commission under the Investment
Company Act of 1940, as amended, and/or the Securities Act of 1933, as amended,
and any and all instruments which such attorneys and agents, or any of them,
deem necessary or advisable to enable any of the Investors or the Portfolio, as
applicable, to comply with such Acts, the rules, regulations, and requirements
of the Securities and Exchange Commission, and the securities or Blue Sky laws
of any state or other jurisdiction, and the undersigned hereby ratifies and
confirms as his own act and deed any and all acts that such attorneys and
agents, or any of them, shall do or cause to be done by virtue hereof. Any one
of such attorneys and agents has, and may exercise, all of the powers hereby
conferred.

IN WITNESS WHEREOF, the undersigned has executed this instrument as of the 22nd
day of October, 2004.


                                       /s/ William C. Osborn
                                       -----------------------------------------
                                       William C. Osborn



                                POWER OF ATTORNEY


The undersigned hereby constitutes and appoints Elizabeth L. Belanger, Amy L.
Domini, Adam M. Kanzer, Carole M. Laible, and Steven D. Lydenberg, and each of
them, with full powers of substitution as her true and lawful attorneys and
agents to execute in her name and on her behalf in any and all capacities the
Registration Statements on Form N-1A, and any and all amendments thereto, filed
by Domini Social Investment Trust, Domini Institutional Trust, Domini Advisor
Trust (each, a "Trust"), and Domini Social Index Portfolio (the "Portfolio"), or
the Registration Statement(s), and any and all amendments thereto, filed by any
other investor (collectively with each Trust, the "Investors") in the Portfolio
(insofar as certain series of each of the Investors invest all their assets in
the Portfolio), with the Securities and Exchange Commission under the Investment
Company Act of 1940, as amended, and/or the Securities Act of 1933, as amended,
and any and all instruments which such attorneys and agents, or any of them,
deem necessary or advisable to enable any of the Investors or the Portfolio, as
applicable, to comply with such Acts, the rules, regulations, and requirements
of the Securities and Exchange Commission, and the securities or Blue Sky laws
of any state or other jurisdiction, and the undersigned hereby ratifies and
confirms as her own act and deed any and all acts that such attorneys and
agents, or any of them, shall do or cause to be done by virtue hereof. Any one
of such attorneys and agents has, and may exercise, all of the powers hereby
conferred.

IN WITNESS WHEREOF, the undersigned has executed this instrument as of the 22nd
day of October, 2004.


                                       /s/ Karen Paul
                                       -----------------------------------------
                                       Karen Paul



                                POWER OF ATTORNEY


The undersigned hereby constitutes and appoints Elizabeth L. Belanger, Amy L.
Domini, Adam M. Kanzer, Carole M. Laible, and Steven D. Lydenberg, and each of
them, with full powers of substitution as his true and lawful attorneys and
agents to execute in his name and on his behalf in any and all capacities the
Registration Statements on Form N-1A, and any and all amendments thereto, filed
by Domini Social Investment Trust, Domini Institutional Trust, Domini Advisor
Trust (each, a "Trust"), and Domini Social Index Portfolio (the "Portfolio"), or
the Registration Statement(s), and any and all amendments thereto, filed by any
other investor (collectively with each Trust, the "Investors") in the Portfolio
(insofar as certain series of each of the Investors invest all their assets in
the Portfolio), with the Securities and Exchange Commission under the Investment
Company Act of 1940, as amended, and/or the Securities Act of 1933, as amended,
and any and all instruments which such attorneys and agents, or any of them,
deem necessary or advisable to enable any of the Investors or the Portfolio, as
applicable, to comply with such Acts, the rules, regulations, and requirements
of the Securities and Exchange Commission, and the securities or Blue Sky laws
of any state or other jurisdiction, and the undersigned hereby ratifies and
confirms as his own act and deed any and all acts that such attorneys and
agents, or any of them, shall do or cause to be done by virtue hereof. Any one
of such attorneys and agents has, and may exercise, all of the powers hereby
conferred.

IN WITNESS WHEREOF, the undersigned has executed this instrument as of the 22nd
day of October, 2004.


                                       /s/ Gregory A. Ratliff
                                       -----------------------------------------
                                       Gregory A. Ratliff



                                POWER OF ATTORNEY


The undersigned hereby constitutes and appoints Elizabeth L. Belanger, Amy L.
Domini, Adam M. Kanzer, Carole M. Laible, and Steven D. Lydenberg, and each of
them, with full powers of substitution as his true and lawful attorneys and
agents to execute in his name and on his behalf in any and all capacities the
Registration Statements on Form N-1A, and any and all amendments thereto, filed
by Domini Social Investment Trust, Domini Institutional Trust, Domini Advisor
Trust (each, a "Trust"), and Domini Social Index Portfolio (the "Portfolio"), or
the Registration Statement(s), and any and all amendments thereto, filed by any
other investor (collectively with each Trust, the "Investors") in the Portfolio
(insofar as certain series of each of the Investors invest all their assets in
the Portfolio), with the Securities and Exchange Commission under the Investment
Company Act of 1940, as amended, and/or the Securities Act of 1933, as amended,
and any and all instruments which such attorneys and agents, or any of them,
deem necessary or advisable to enable any of the Investors or the Portfolio, as
applicable, to comply with such Acts, the rules, regulations, and requirements
of the Securities and Exchange Commission, and the securities or Blue Sky laws
of any state or other jurisdiction, and the undersigned hereby ratifies and
confirms as his own act and deed any and all acts that such attorneys and
agents, or any of them, shall do or cause to be done by virtue hereof. Any one
of such attorneys and agents has, and may exercise, all of the powers hereby
conferred.

IN WITNESS WHEREOF, the undersigned has executed this instrument as of the 22nd
day of October, 2004.


                                       /s/ John L. Shields
                                       -----------------------------------------
                                       John L. Shields



                               POWER OF ATTORNEY


The undersigned hereby constitutes and appoints Elizabeth L. Belanger, Amy L.
Domini, Adam M. Kanzer, Carole M. Laible, and Steven D. Lydenberg, and each of
them, with full powers of substitution as his true and lawful attorneys and
agents to execute in his name and on his behalf in any and all capacities the
Registration Statements on Form N-1A, and any and all amendments thereto, filed
by Domini Social Investment Trust, Domini Institutional Trust, Domini Advisor
Trust (each, a "Trust"), and Domini Social Index Portfolio (the "Portfolio"), or
the Registration Statement(s), and any and all amendments thereto, filed by any
other investor (collectively with each Trust, the "Investors") in the Portfolio
(insofar as certain series of each of the Investors invest all their assets in
the Portfolio), with the Securities and Exchange Commission under the Investment
Company Act of 1940, as amended, and/or the Securities Act of 1933, as amended,
and any and all instruments which such attorneys and agents, or any of them,
deem necessary or advisable to enable any of the Investors or the Portfolio, as
applicable, to comply with such Acts, the rules, regulations, and requirements
of the Securities and Exchange Commission, and the securities or Blue Sky laws
of any state or other jurisdiction, and the undersigned hereby ratifies and
confirms as his own act and deed any and all acts that such attorneys and
agents, or any of them, shall do or cause to be done by virtue hereof. Any one
of such attorneys and agents has, and may exercise, all of the powers hereby
conferred.

IN WITNESS WHEREOF, the undersigned has executed this instrument as of the 22nd
day of October, 2004.


                                       /s/ Frederick C. Williamson, Sr.
                                       -----------------------------------------
                                       Frederick C. Williamson, Sr.