When it comes to why we do social media - its all about links... "Links act like votes for a given piece of content, and as a result content with the best link profile usually does extremely well in the rankings for related terms.", according to Eric Enge in a Search Engine Watch post on Jul 13, 2010 he has labeled "The Death of Natural Linking". Eric identifies that when you use Social Media sites to create back links to your web site it greatly increases your SEO in a way that is not only great from an SEO perspective, it may in fact be the MOST effective way to do this.
Fact is, using automated Social Media Hub publishing tools such as our partners sites do; http://AutoDealerMLS.com, http://Youtubecarsandtrucks.com or http://Techmediamarketing.com which create automated process of taking auto or real estate listings and post them to YouTube, Facebook, Twitter and now Google Buzz create a tremendous "white hat" [define] linking process that is hard to beat for creating a strong Internet Profile and visibility with search engines (get on first page).
Read his entire post and be sure to click on his links at
http://searchenginewatch.com/3640951
