Senh: Google should focus on the +1 button instead. No one is using Google+. I take a peak once in a while, and there's just no one there.
Senh: I've already been seeing some of that in action. I've noticed that the results I get when I'm logged-in are different from the results I get when I'm not. Sometimes, I get results from sites that I'm Plus One-ed on. Sometimes I get results from sites that I visit often, like MoviesWithButter.com, for instance.
Senh: Unless those media mentions can convert more people to using twitter, it's kind of a useless metric. It just means that Twitter's marketing department is doing a good job. Also, because writers tend to solicit users to follow them on Twitter, it makes it a more natural medium for them to use.