Google's Bradley Horowitz today announced new safety enhancements and the ability for teens 13+ to join the new social network, Google+. This move will definitely open up the flood gates for a huge increase in their new social network that already boasts 90 millions users in only the first 6 months of being in existence! Easily one of the fastest growing social networks ever.
You can read Bradley's post with all the info right here: https://plus.google.com/113116318008017777871/posts/hvXAqqHTkZe
Picture Source: https://plus.google.com/b/101696583636838181015/101269616518480136760/posts/Zxin6q6dQGv