Here are some thief related sites
(you can e-mail you site and I will link it to my site)

The Circle of Stone and Shadow

It is the best thief site around. It has everything a taffer dreams of. This is a must go-to site

TTLG

These are fourms. Its fetures many games and thief is one of them.

Thievery

This is gonna be a new mod for thief!!

The Keep Of Metal and Gold

This site has tons and tons of FMs

Taffer Tavern

This is another FM site

These sites are not all about thief but they do have it

Gamespot

PC Game World

IGN