Could anyone please lemme know what is Social Media Optimization? What are the advantages of it?

Question From User - Answers in Comments.

I also want to know how it effects and potential benefits of it and also how to implement this Social Media Optimization on my Website(Step by Step Please)..??
http://bharathreddy.net

any kinda help would be greatly appreciated...

Thanks in Advance!!!
Thanks Kamlavati and Erica..Thanks for the information!!