I contacted the owner of the site (who happens to be my friend) and he was very surprised to say the least that his site was marked as malicious content by both Avast! and McAfee. I'm not technical but he explained that this could be related to the fact that antivirus sites often analyse the rating of the main domain and not the actual subdomain.
Compare http://www.google.com/safebrowsing/diagnostic?site=allfreebitcoins.pixub.com and http://www.google.com/safebrowsing/diagnostic?site=pixub.com

I am using Norton Internet Security myself and it never complained about it. Anyway, it's a different discussion and I'm not going to promote the url if it shows as malicious. Just wanted to warn people that many similar sites hosted with "bad" reputation domains could suffer from the same problem.

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