As it turns out, there are 150 million Facebook users in the U.S. Together, we spent 100,000 years on Facebook in May of 2011. That’s quite a bit of time. Seems huge right? But break it down and the numbers get more manageable. This all comes down to 10 minutes per day per user. But still, wow! We do love our Facebook. Speaking of which, mine is @kirby-kangaroo.