I am not incredibly involved in Social Media and I obviously have none of the dating sites. It seems like historically I only join sites when I am forced to. I wanted to contact a girl and learn more about a crime at my university so I joined Myspace. I wanted to keep in contact with my sister, so I joined Facebook. I wanted push my artwork so I joined Pinterest and Etsy. I had conferences on Google + for school. I wanted to see good photos of my first roommate’s baby so I joined Instagram. So, I have several sites but I am only really active on Facebook and recently Instagram. The charity I run is on Twitter but we do not really post either. I do not have a personal Twitter. I am sure as new social networks are created there will be some reason that will push me to join them. You are free to add me to any network I am on but do not expect a lot of interaction with me on most of them! Haha.
Social Networking is always evolving so these are just the sites that are around at the time of this writing.