Google+ still has a chance. But time is running out. Having just used it with a class for a semester, it was great (because all my students use Facebook so they weren't distracted!)but there are some huge gaps. Will everyone be gone before they are fixed. Why oh why, didn't they introduce shared circles from the start. Try to get 50 students to add each other, it is just not possible. This is the customer service Amazon point that was made so well in the article. I think it was great that it went public, there are lots of great points to think about.