I think social media, such as facebook, is still have its heart to billions people worldwide. There are a lot of companies, online stores, businesses, communities create groups and pages on facebook nowadays, and still counting.
And many of people even can make a good income by using social media; with facebook, twitter, youtube, etc.
With social networking sites, people can make deals with or without a website.
And with the right social bookmarking techniques or tools, we can boost our website's SEO presence in a short period of time.
Not only that, there are also so many great SEO tools with low-cost priced and easy to use.
As an example, one of my favorite pages which inform on How To Make Money Online is facebook.com/MoneyOnlineNews - I have using some of making money tools from this page, and they are working pretty well indeed. I think you shall to try them sometime, and for sure, every single of them are covered with money back guarantee.