URLVOID: Suspicious url scanner
Urlvoid (beta version at the moment) is a free service that scan suspicious websites with multi engines to check if the site is safe to browse.
Its a virustotal like but for websites ;)
Scanner list used by urlvoid:
McAfee SiteAdvisor, McAfee Trusted Source, PcTools Browser Defender, Norton SafeWeb, MyWOT, Threat Log, MalwareDomainList, hpHosts, ZeuS Tracker, Google Diagnostic, PhishTank, Project Honey Pot, ParetoLogic, Spamhaus, URIBL, Malware Patrol, SURBL, SpamCop, TrendMicro Web Reputation, Web Security Guard.