Facebook's EdgeRank algorithm relies on frequency and relevance of information updates from your social network. Unlike Google's "PageRank" (where links are important), Facebook focuses on how often your friends click on "edges" of information posted and frequency of sharing. These are indicators of how popular the content is.
With over 500 completed projects in search engine optimization, SearchForecast has built Skumatic which delivers a 1 click install functionality for product catalogs on Facebook. Content is king on Facebook and Product catalog information can be installed into Facebook pages as a self contained application, allowing customers to browse products and ask friends advice before buying.