Google's search algorithm is very complex and is not made publicly available. As Matt Cutts states there are over 200 factors that will effect your page rank. On-Page SEO is important but is SEO 101 and only accounts for about 25% of your website's page rank. The most important factor is Off-Page SEO - having high quality and authoritative "backlinks" to your website.
How to sell products on your Facebook Business Page.
We have just selected GroSocial as our technology partner to create compelling and interactive Facebook pages - websites!! Check out GroSocial's video on creating a store on your Facebook page to sell your products online.