I do not think that online commerce sites like Amazon should be able to advertise and allow people to buy on Facebook or MySpace at all.  Social networking is already way too involved in people’s personal life and to have more involvement in buying, selling, trading, would just be beyond my acceptance.  This is my personal choice and thought on this matter!!   Recently, I deleted my MySpace account because there were too many advertisements and too much involvement in people’s lives that I was not close with and I felt like I should be physically interacting with my friends who I want to see instead of writing about it and interacting online.  I personally feel that social networking and e-commerce can be a little much; therefore, combining them together may discourage people from having MySpace, Facebook and Twitter accounts.