Advertisers are allowed to advertiser social networking webpages with 7search.com! The page must be business related. It cannot be a personal page. The display URL should not be the home page only: i.e. Facebook.com.  It should read facebook.com/business.  Advertisers can bid on keywords pertaining to their line of business like a regular website would.  Use of social network names as part of the keyword is not permitted. I.E. Unacceptabled keywords are "Facebook page about PC", "Chicken facebook", Chicken facebook fan page.