Google+ By kristynlyons Jun 28, 2011 Google+ is launched for a "testing phase" Jun 29, 2011 Google+ Users were able to send invites Users can now send invitations to those over the age of 18. Jul 12, 2011 Google+ Reaches 25 million users Jul 14, 2011 Google+ reached 10 Millions users Aug 6, 2011 Each Google+ member now has 150 invites to give out Sep 20, 2011 Google+ was opened up to everyone over the age of 18 Without needing an invite Sep 23, 2011 I started using google+ (Date is approximate) Oct 1, 2011 Reaches 40 millions users