Below you will find a smattering of links.
Warhammer Fantasy Roleplay:
Black Industries - The new division of Games Workshop that produces the new edition of WFRP.
The Encroachment of Chaos - Quite excellent WFRP resource site.
Hapimeses - Home of the talented Andrew Law aka Hapimeses. Very much a must-see.
Mad Alfred - Yet another excellent site full of maps, gazetteers, scenarios, etc.
Whymme's WFRP site - A humorous and brilliant site.
Winds of Chaos - WFRP fan site with a couple of nice articles, including some very nice expanded critical hit charts. My maps can also be found there.
Inspiration:
Adrian Smith - One of the best artists around in my not-so-humble opinion.
Deutschland 1929 - Pictures of Germany taken in 1929. Lots of medieval and Renaissance architecture can be seen.
The History of Costume - Fashion throughout the ages. So very cool! :)
Ian Miller - Famed artist of WFRP v1. Weird, but brilliant art.
Landsknecht Woodcuts - Early Renaissance military uniforms. An absolute must-see for WFRP fans!
MyArmoury - An interesting resource site for historic arms and armour. It also has a very interesting Weapon Comparison feature.
Other RPG related sites:
Ars Magica - Best magic system around. 'nuff said.
Burning Wheel - Superb. Nothing less.
Dark Legacies - Incredible setting with a very WFRP'esque feel to it. One of the best looking settings, bar none.
The Riddle of Steel - Best combat system I've ever come across, but probably not for everybody.
RPG.net - Busy, busy, busy.
Sons of Kryos - A splendid podcast about gaming.