Hahaha. Social media is the great advertising concept now a days. Cheap but powerful, its have huge mass. Almost all people use it. Low budget high impact
Yes, i agree, content is the main power.
Because if people come to any website, they want to search / get something, and that is content.
If that people get what they want, they will be loyal, and come back again.
I try it in my blog Blogger Templ...