POWER OF ATTORNEY

	Know all by these presents, that the undersigned
hereby constitutes and appoints each of Michael J.
Callahan, Susan Decker and Michael Murray, signing
singly, his true and lawful attorney-in-fact to:
(1)  Execute for and on behalf of the undersigned Forms
3, 4 and 5 with respect to securities of Yahoo! Inc.,
in accordance with Section 16(a) of the Securities
Exchange Act of 1934 and the rules thereunder (the
"1934 Act");
(2)  Perform any and all acts for and on behalf of the
undersigned which may be necessary or desirable to
complete the execution of any such Form 3, 4 or 5 and
the timely filing of such form with the United States
Securities and Exchange Commission and any other
authority, including the execution of an application
for EDGAR codes on Form ID; and
(3)  Take any other action of any type whatsoever in
connection with the foregoing which, in the opinion of
such attorney-in-fact, may be of benefit to or legally
required by, the undersigned, it being understood that
the documents executed by such attorney-in-fact on
behalf of the undersigned pursuant to this Power of
Attorney shall be in such form and shall contain such
terms and conditions as such attorney-in-fact may
approve in his discretion.
The undersigned hereby grants to each such attorney-in-
fact full power and authority to do and perform each
and every act whatsoever requisite, necessary and
proper to be done in the exercise of any of the rights
and powers herein granted, as fully as such attorney-
in-fact could do if personally present, with full power
of substitution or revocation, hereby ratifying and
confirming all that such attorney-in-fact, or his
substitute, shall lawfully do or cause to be done by
virtue of this Power of Attorney and the rights and
powers herein granted.  The undersigned acknowledges
that the foregoing attorneys-in-fact, in serving in
such capacity at the request of the undersigned, are
not assuming any of the undersigned's responsibilities
to comply with Section 16 of the 1934 Act.
This Power of Attorney shall be effective as of the
date written below, and unless sooner revoked, shall
terminate upon the fifth (5th) anniversary of the date
written below.
IN WITNESS WHEREOF, the undersigned has caused this
Power of Attorney to be executed as of May 19, 2005.


Signature

Daniel Rosensweig
Print Name
Power of Attorney new.doc