Jess Bolluyt writes: “Find out how much you’re worth to these five social networks: Facebook, LinkedIn, Twitter, Instagram (owned by Facebook), and Tumblr (owned by Yahoo). So let’s say that you use only Facebook for your social networking needs. You made $8.97 for the social network last year. But if you use Facebook to connect with your friends, and LinkedIn to connect with colleagues and network with others in your field, you made $15.31 for the social networks last year. Add in Twitter, and you’re up to $20.17. And if you use all five social networks, you made $22.74 for these social media companies all by logging in, posting and liking content, reading articles, and perhaps occasionally clicking on an ad. There are a couple of caveats with this method. This kind of basic calculation assumes that all users are the same, while we know for a fact that your location, level of activity, how many friends you have, and what you do on the social network have a big impact on how much revenue you actually generate.”