There are 9 main social networks which you can't ignore. They include Facebook, Twitter, LinkedIn, Pinterest, YouTube, Google+, Instagram, Tumblr and Foursquare. Sure you might not use all of them, but some people who are always connected and very web and tech savvy like myself use all of them. My main ones are Twitter, Facebook, Pinterest, Google+, Instagram and Tumblr. Once you use social networks like this extensively you end up working out what type of content works best, and how to communicate with people on those networks. It's not easy understanding all these social networks, it can take months or years to master them to get the most out of them. But thankfully with the amount of variety there is, there's something for everyone.