has added seven more antivirus vendors to its AV Marketplace
, a move that gives the social network a total of a dozen companies whose databases it can tap to identify malicious website links on the site.
Facebook identified the additional partners Tuesday. They include avast!, AVG, Avira, Kaspersky Lab, Panda, Total Defense and Webroot. The companies join Microsoft, McAfee, Norton, TrendMicro and Sophos in selling or offering for free antivirus products for PCs, Macs and mobile phones.