This is probably not the BEST site but it is very fun and addicting. If you like talking about Twilight and all.. why not play as a vampire? It's a browser-based mmorpg. If you don't like this one why not make this a thread where we all post sites like this or something? Would be something fun.. Well check it out yeah?

http://world2.monstersgame.co.uk/?ac=vid&vid=31130618