If it looks like lots of Facebook pages are shedding fans, it’s because they are. But, then again, they aren’t. Facebook has begun a purge of fake accounts and “Likes” as part of a set of site improvements announced last month. The result has been lower numbers on fan pages, including some of the site’s most popular ones, but no actual loss of real followers. On August 31, Facebook announced plans for improvements to its “site integrity systems.” That, according to a blog post, included increased automated efforts to sniff out and delete fake accounts or Likes that had been illicitly sold or gained by otherwise shady means. Read the full story at CNN.