It’s time for our monthly number-crunching, and the month of May definitely brought some surprising results. While YouTube is attracting an ever increasing audience, and Facebook is still growing fast, Twitter’s growth has suddenly stopped, at least according to the numbers from Compete.

We’ve been covering the steep, steep curve of Twitter’s increasing visitors for the last couple of months, and it was obvious that it cannot go on forever. However, seeing Twitter’s growth flatline with only a 1.47% increase (up to 19,728,619 monthly visitors) is surprising, especially since Twitter-mania has all but stopped. Monthly visits to Twitter, however, have increased by a healthy 6.99%, up to 134,536,240. Of course, Compete’s numbers are not guaranteed to be fully accurate; it will be interesting to see how Twitter performs in the following months.

Twitter does, however, have some nice numbers to show; according to Nielsen Online, total minutes spent on Twitter rose by a staggering 3712% from April 08 to April 09. In the same period, total

minutes spent on Facebook in