I use Google+, and I find the quality of the comments are very sophisticated because there is more trust inside of Google+ than there is inside of Twitter and Facebook, for example.
Eric SchmidtPeople who bet against the Internet, who think that somehow this change is just a generational shift, miss that it is a fundamental reorganizing of the power of the end user. The Internet brings tremendous tools to the end user, and that end user is going to use them.
Eric Schmidt