Every year ThoughtWorks publishes a new version of their Technology Radar. This Technology Radar is an overview of what they think are interesting software development tools, techniques, frameworks, and platforms. These items are mapped into the levels: Adopt, Trail, Assess, and Hold.
I am not going to explain how this radar works, because they do that themselves quite well. I just want to bring it to your attention that a new version is out, and you should check it out. It will give you some insight in things you might not even knew about. If there is one thing difficult it is finding out and assessing all the different pieces in the software development world.