The one billion monthly user club is an exclusive one. First it was Facebook who hit the milestone last year, and now the club officially has a new member: YouTube. The user-generated video serviced announced the milestone in a blogpost on Wednesday. "In the last eight years you’ve come to YouTube to watch, share and fall in love with videos from all over the world. Tens of thousands of partners have created channels that have found and built businesses for passionate, engaged audiences. Advertisers have taken notice: all of the Ad Age Top 100 brands are now running campaigns on YouTube. And today, we’re announcing a new milestone: YouTube now has more than a billion unique users every single month," YouTube wrote. To put the number in perspective, YouTube also released some impressive stats. For example, this number means that 50% of the entire Internet population is visitng YouTube every month. It is equal to around 10 Super Bowl audience put together. In fact, if YouTub