"Will Facebook and Twitter fight back with more innovation? Of course! But I'm saying that Google+ is already good enough, and the team on Google+ is being so responsive in a way that makes me believe they have a real winner here."
Bill Gross, founder and CEO of Technology Incubator Idealab.
Bill Gross: Google+ Will Get 100 Million Users Faster Than Any Service In History
"The product is extremely well executed, and a lot of people are smitten."