WoW is the only Blizzard title I have ever played, so my lore knowledge is very weak. Can anyone recommend a site that has a comprehensive, beginning to end version of WoW lore?

http://www.worldofwarcraft.com/info/story/index.html

In particular, the history of Warcraft section on that page has a lot of back story.

Thanks!

WoWInsider.com also has some nice articles, mainly from an RP perspective on the individual races within WoW. They're pretty indepth but from the couple I've perused they certainly seem to cover the background well.