Facebook: All the time. It's consumed my soul.
Twitter: Not a lot. I mostly use it to keep up-to-date with current events -- I follow NBC, CNN, etc.
Tumblr: Not a lot. I have it in conjunction with my personal website as of blog of sorts but not a big fan of Tumblr.
Linkedin: Not a lot but I try to keep it updated as much as possible.
Instagram: Occasionally - Just got it a few months ago and I check it quite frequently, but don't post daily.


You forgot Snapchat. Snapchat is where it's at right now. Apparently people still care about Vine as well.