3. Facebook: You can also earn good pay checks if you select to work with the most popular social networking site, Facebook. Facebook pays $6,229 per months to its interns. Launched in February 2004, Facebook was founded by Mark Zuckerberg along with his team of college roommates namely Eduardo Saverin, Dustin Moskovitz and Chris Hughes. This social networking site was ranked as the most used social networking service by worldwide monthly active users, in the complete.com study conducted in Januaray 2009.