CPM is cost per mile & CPA is cost per action. CPA is the best deal of all for Advertisers in terms of risk because they only pay for media when it results in a sale, or conversion against their campaign goal. At this level, Marketers can pick the most they’re willing to spend for a sale and...
SMO is the process of streamlining a website in ways that make it easier for visitors to share and spread site content across various social media sites.
SMM focuses more on using social networking sites to generate interest, views, sales and interaction with a company or its products and services.