Social networking pages are essentially “fan pages” whether they’re labeled as such or not. They work in the same way blog works, where you gain “followers” who purportedly keep in touch with your and read all of your updates. When you’re managing a store, whether it’s online, brick-and-mortar, or both, social networking fan pages can work to your advantage as long as you use the page well.
According to Google, Pagerank is a way of leveraging the “uniquely democratic nature of the web by using its vast link structure as an indicator of an individual page’s value.”
Let’s explain with an example. Take two pages, page X and page Y. Now according to Google, when X links to Y, it is counted as a vote of approval by page X for page Y. However, there’s more. Google doesn’t limit pageranking to just the volume of votes (links) a webpage receives. The search engine also analyses the webpage that voted for the other webpage. So, if a heavyweight webpage casts a vote for your webpage, then it counts more and makes your webpage “important”