There are no fewer than 8 fanlistings devoted to Sarah Michelle Gellar and either characters she has portrayed, or films she has made.
The links to all 8 follow:
(updated 27 January 2015)
Sarah Michelle Gellar
Buffy the Vampire Slayer
Amanda Shelton (Simply Irresistible)
Katherine Merteuil (Cruel Intentions)
Cindy Bandolini (Harvard Man) Cici Cooper (Scream 2)