Optimizing Social Media Profile should be on a list of things to do to gain traffic and exposure for your business. Using popular Social Media sites like Digg, Reddit, and Lala to get ranked for your keyword phrases is a smart thing to do.
Within the profile you can input your keyword phrases and a thorough description about the product or service.
Any businesses in any industry can use these popular trusted sites in the eyes of Google. Can be ranked on that first page of search result. For example a window company that installs hi tech energy efficient window like West Coast Vinyl can be listed in any of the popular Social Media sites to obtain rankings and link building.
This is similar to parasite hosting, but you’re optimizing the profile to get the rankings and linking.