Have you ever wondered about those silly challenges that come up - TopicsExpress

Have you ever wondered about those silly challenges that come up in your News Feed -- like I bet you cant name a city that doesnt have the letter A in it? The last one I noticed had about half a million comments from Facebook users who felt up to the challenge! Have you ever wondered about the purpose of these posts? Its all about something called EdgeRank. This is part of the algorithm Facebook uses to determine what gets displayed to you. The edgerank of a page is increased with every Like ... and, even more so with every comment. So, if you volunteer Rome, you increase the likelihood that content from that provider will gain a priority position in your News Feed ... and that the provider will increase his advertizing revenues. Anyway, heres the nitty-gritty of what these comment-eliciting posts are all about: socialmediasun/facebook-edgerank-explained/