Pay Per Click: Is a paid online advertising system that produces advertisements based on a user’s search query. Participants pay a “per click†fee each time and add is clicked. The top three PPC providers are Google AdWords, Yahoo! Search Marketing, and MSN AdCenter. Social media optimization (a.k.a. SMO) is the process of optimizing your company's social role on the web in order to increase business, boost sales, and enhance visibility, traffic, and overall web presence.