Facebook’s algorithms, EdgeRank, effects how visible your posts are to Facebook users. A low EdgeRank will keep your posts from showing up on your Fan’s news feed. What can you do to help boost your EdgeRank?
Facebook is looking for interaction, relevant conversations, and engaging relationships. The more you give Facebook these elements, the higher your EdgeRank and the more often your updates will show up in your Fan’s wall feed. Refrain from over pushing ads, propaganda and sales as these can harm your visibility and hurt your EdgeRank overall.