Social media cheat sheet

Want to know which social media sites to use to make an impact? Imagine you are in business....Depends on your goals, your marketing strategy and more. Suppose you consider :

• Customer communication
• Brand exposure
• Driving traffic to your site
• SEO

This little cheat sheet created by CMO.com ranks the most popular/used social media sites (from the biggies like Facebook and Digg to the less talked about Reddit and del.icio.us) as good, okay or bad for the four goals above.