FILED PURSUANT TO RULE 424(b)(3) AND (c)
                                                      FILE NUMBER 333-61413



      FOURTEENTH PROSPECTUS SUPPLEMENT TO PROSPECTUS DATED AUGUST 24, 1998

                                4,185,124 SHARES

                                   LYCOS, INC.

                                  COMMON STOCK



This Fourteenth Prospectus Supplement (the "Thirteenth  Prospectus  Supplement")
supplements  the  Prospectus  dated  August  24,  1998 (the  "Prospectus"),  the
Prospectus   Supplement   dated  September  15,  1998  (the  "First   Prospectus
Supplement"),  the Second  Prospectus  Supplement  dated  October  28, 1998 (the
"Second Prospectus Supplement"),  the Third Prospectus Supplement dated November
12, 1998 (the "Third Prospectus  Supplement"),  the Fourth Prospectus Supplement
dated  November  18,  1998  (the  "Fourth  Prospectus  Supplement"),  the  Fifth
Prospectus   Supplement   dated   November  19,  1998  (the  "Fifth   Prospectus
Supplement"), the Sixth Prospectus Supplement dated December 1, 1998 (the "Sixth
Prospectus  Supplement"),  the Seventh  Prospectus  Supplement dated December 2,
1998 (the "Seventh  Prospectus  Supplement"),  the Eighth Prospectus  Supplement
dated  December  4,  1998  (the  "Eighth  Prospectus  Supplement"),   the  Ninth
Supplement  dated  December 21, 1998 (the "Ninth  Prospectus  Supplement"),  the
Tenth  Prospectus  Supplement  dated  December  28, 1998 (the "Tenth  Prospectus
Supplement"),  the Eleventh  Prospectus  Supplement  dated January 14, 1999 (the
"Eleventh  Prospectus"),  the Twelfth  Prospectus  Supplement dated February 12,
1999  (the  "Twelfth  Prospectus  Supplement")  and  the  Thirteenth  Prospectus
Supplement  dated  March 2,  1999 of  Lycos,  Inc.  ("Lycos"  or the  "Company")
relating to the public offering, which is not being underwritten, and sale of up
to 4,185,124 shares of Common Stock, par value $0.01 per share (the "Shares") of
the  Company,  which  may be  offered  and  sold  from  time to time by  certain
stockholders  of the  Company  or by  pledgees,  donees,  transferees  or  other
successors  in  interest  that  receive  such  shares  as  a  gift,  partnership
distribution or other non-sale  related  transfer (the "Selling  Stockholders").
The Company will receive no part of the proceeds of such sales.  The Shares were
originally issued or reserved for issuance by the Company in connection with the
Company's  acquisition  of  WhoWhere?  Inc., a  California  corporation,  by and
through a merger of a wholly-owned  subsidiary of Lycos, What Acquisition Corp.,
with and into WhoWhere?  Inc. (the  "Acquisition").  The "Selling  Stockholders"
Section  of  the  Prospectus,   the  First  Prospectus  Supplement,  the  Second
Prospectus Supplement,  the Third Prospectus  Supplement,  the Fourth Prospectus
Supplement,  the Fifth Prospectus  Supplement,  the Sixth Prospectus Supplement,
the Seventh Prospectus Supplement,  the Eighth Prospectus Supplement,  the Ninth
Prospectus Supplement,  the Tenth Prospectus Supplement, the Eleventh Prospectus
Supplement, the Twelfth Prospectus Supplement are hereby supplemented to reflect
the gift made by David  Rockefeller to the Rockefeller  University in the amount
of 5,766 shares after the date of





the  Prospectus,   the  First  Prospectus  Supplement,   the  Second  Prospectus
Supplement,  the Third Prospectus Supplement,  the Fourth Prospectus Supplement,
the Fifth Prospectus Supplement,  the Sixth Prospectus  Supplement,  the Seventh
Prospectus Supplement,  the Eighth Prospectus  Supplement,  the Ninth Prospectus
Supplement, the Tenth Prospectus Supplement, the Eleventh Prospectus Supplement,
the Twelfth Prospectus Supplement and the Thirteenth Prospectus Supplement. This
Fourteenth  Prospectus  Supplement  should  be  read  in  conjunction  with  the
Prospectus,  the First Prospectus Supplement,  the Second Prospectus Supplement,
the Third Prospectus  Supplement,  the Fourth Prospectus  Supplement,  the Fifth
Prospectus Supplement,  the Sixth Prospectus Supplement,  the Seventh Prospectus
Supplement,  the Eighth Prospectus Supplement,  the Ninth Prospectus Supplement,
the Tenth Prospectus Supplement, the Eleventh Prospectus Supplement, the Twelfth
Prospectus Supplement and Thirteenth Prospectus Supplement,  and is qualified by
reference  to the  Prospectus,  the  First  Prospectus  Supplement,  the  Second
Prospectus Supplement,  the Third Prospectus  Supplement,  the Fourth Prospectus
Supplement,  the Fifth Prospectus  Supplement,  the Sixth Prospectus Supplement,
the Seventh Prospectus Supplement,  the Eighth Prospectus Supplement,  the Ninth
Prospectus Supplement,  the Tenth Prospectus Supplement, the Eleventh Prospectus
Supplement,  the Twelfth  Prospectus  Supplement and the  Thirteenth  Prospectus
Supplement,   except  to  the  extent  that  the  information  herein  contained
supersedes the  information  contained in the Prospectus,  the First  Prospectus
Supplement,  the Second Prospectus Supplement,  the Third Prospectus Supplement,
the Fourth Prospectus  Supplement,  the Fifth Prospectus  Supplement,  the Sixth
Prospectus Supplement,  the Seventh Prospectus Supplement, the Eighth Prospectus
Supplement,  the Ninth Prospectus  Supplement,  the Tenth Prospectus Supplement,
the Eleventh  Prospectus  Supplement,  the Twelfth Prospectus and the Thirteenth
Prospectus  Supplement.  Capitalized  terms used in this  Fourteenth  Prospectus
Supplement and not otherwise  defined herein have the meanings  specified in the
Prospectus.







       THE DATE OF THIS FOURTEENTH PROSPECTUS SUPPLEMENT IS MARCH 25, 1999

                              SELLING STOCKHOLDERS

         On March 23, 1999, five thousand seven hundred sixty-six (5,766) of the
Shares  beneficially owned by David Rockefeller  reflected in the Prospectus and
the supplements thereto were gifted to the Rockefeller University.  The table of
Selling  Stockholders in the Prospectus and the  supplements  thereto are hereby
amended to reflect such gift and  supplemented  to  specifically  include Shares
received in such gift.