This is a good move.

Facebook turns to Websense for malicious URL detection 

The goal is to protect users from clicking on links that take them to phishing and malware sites

Faceboo has partnered with security vendor Websense to protect its users from third-party malicious URLs spammed on the social networking website, the companies said on Monday.

Facebook has been plagued by malware distribution campaigns, survey scams and other types of threats for years now and despite the company's best efforts the attacks continue.

http://m.networkworld.com/news/2011/100311-facebook-turns-to-websense-for-251500.html?source=nww_rss