SMO is related to search engine marketing. It is a technique in which social media such as Google+, Facebook, twitter is used so as to attract visitors to the website and drive huge traffic to the website. Using social media you can promote your services within your network. However, it require proper strategy then only fruitful results can be obtained.
this is good way to optimized site and get more traffic from social media sites. That called social media optimization.
SMO is calle social media optimization. It is the process of using social networks to optimize your websites.
Social Media Optimization (SMO) is the methodization of social media activity with the intent of attracting unique visitors to website content. SMO is one of two online methods of website optimization; the other method is search engine optimization or SEO.
SMO is Social Media Optimisation. You can read some more about it here:Improve Your Social Media Optimisation With Buzz Worthy Content
Social Media Optimization through which you can get huge amount of traffic towards your website and is one of the cost effective platform for advertising and viral marketing. Social Media sites such as Facebook, Twitter, LinkedIn, StumbleUpon, and many more site you can use according to your need.
Social media optimization means promote the site by social media sites like facebook and twitter etc. where you add friends and fans or share your information with them in order to promote the business or site.