SiteAdvisor

Have you heard of a free tool called SiteAdvisor? It has a database of sites and if they are safe or not. A site that is fine is green, a site that is not OK has a red rating, a site that is in the middle is yellow and an unchecked site is grey. It's free, but you can buy SiteAdvisor Plus which adds more protection.

SiteAdvisor Website

Please note: SiteAdvisor is currently available for Internet Explorer or Firefox.