Check this site
http://allfreebitcoins.pixub.com/I think it's one of the best faucet lists available on the net with detailed descriptions of what each service does, how much it pays and how much you need to accumulate in order to get paid. The list is kept up-to-date and growing and is not limited to faucets. What I also like is that the information is quite fair and you are warned if there is risk associated with any service.
The site is new but it has definitely been my favourite for a while. A new feature allowing personalized faucet lists is supposed to come soon