Hey Colorado: Which Social Networking Site Do You Use the Most? [POLL]

Facebook used to be a small site that you could only use if you were a college student at a few select schools (including Fort Collins' own CSU).  Then, as Facebook expanded, along came Twitter, Google+, and a bunch of others.

For most people, Facebook is still king; but as each social networking site strives to keep up with the next, adding new features and easier ways to connect with friends and loved ones, it seems like the competition is getting stiffer and stiffer.

So it begs the question: