Hi bellevoir,
SMO is Social Media Optimization
Naturally, SMO has to do with social networks and the growing importance to business. This aspect of optimization works with your company's occurrence and online reputation through interactive communities--not just Facebook and Tweets, but also blogs, discussion boards, and anywhere your business is mentioned or connected to socially.
Dealing with SMO can help you improve your brand and increase visibility, as well as generate leads and increase sales. Optimizing your interpersonal media builds both understanding with and trust for your business, because consumers will see you not only mentioned, but suggested by others.