I think Google+ and Facebook complement each other in some sense. Facebook is social network which is mostly used communicate with "friends" and Google+ to communicate with like-minded people.
I use Sublime Text for c++, I like it's simple and clear design, it fast and makes me more productive.
For java I use Eclipse, it has useful set of features, especially I like it's refactroing tools. The biggest downside is it's too slow for big projects.