Social Media Optimization (SMO) help to increase visibility on the search engines through posting on Blogs, Articles, Message on fourms etc. With the help of SEM your website gets optimize in the search engines. You can promote your website through following channels like SEO, Search Engine Marketing, (SMO) Social Media Optimization. You can bookmarking as well. You can post your message regarding your website through forums, blog, video youtube etc. and submit these files on social media sites.
This will help to generate back link on your website and get index in the searh engines and generate traffic and ranking for your website will you make popular and visible in search engines.