I have Facebook which I use everyday. I mainly have it cause there's certain groups of people who I like keeping in touch with. I usually only post status every several days, but I usually post something once a day. Usually a video, link to a funny image, or a funny picture, most of them Pokemon related or related to things I like. Most of my statuses are about things actually relating to my life, such as if I were to get a job or once I actually start attending college. I have Tumblr, which I've been using more often lately. I used to only check it every few days or weeks, but now I check it at least once a day, sometimes 3-5 times a day. I just reblog whatever I find amuzing. And then I have Twitter which I used every few days and is where I post my most random thoughts and I now use Instagram too. I think it's a great way to express my thoughts in a different way aka a picture. Plus I love taking pictures. At the moment I have no actual phone so I can only access it when I use a display phone/tablet in stores so right now most my pictures are either selflies , whatever I can drag into said store without looking weird, I post a scanned image of something I want to share that I emailed to myself. Once I get a phone , I'll be using it more often and take pictures of more things that I see or that happen throughout the day.
So yeah tl;dr I have a long list of social media sites that I use often for many different purposes. :P