It is always great to see other dedicated fan-sites. And this is one of them: Complete Gotrek & Felix - Everything about Gotrek and Felix (link to other site).
It is not only great work, but features also my favorite heroes from the Warhammer Slayer Gotrek and his companion Felix Jaeger. From this site you can find everything about them or where they have been featured during the years (novels, articles, art, games...etc.).