Search engine optimization (SEO) is the process of improving the visibility of a website or a web page in a search engine's "natural," or un-paid ("organic" or "algorithmic"), search results. In general, the earlier (or higher ranked on the search results page), and more frequently a site appears in the search results list, the more visitors it will receive from the search engine's users. SEO may target different kinds of search, including image search, local search, video search, academic search, news search and industry-specific vertical search engines.
Abbreviated as SMO, social media optimization is the process of increasing the awareness of a product, brand or event by using a number of social media outlets and communities to generate viral publicity.
Social media optimization includes using RSS feeds, social news and bookmarking sites, as well as social media sites and video and blogging sites. SMO is similar to SEO (search engine optimization) in that the goal is to drive traffic to your Web site.