When learning a new programming language one of the hardest parts is figuring out where to start. This handy chart helps out with suggestions for java, python, ruby and javascript.
It is kind of meta listing my list, but site speed is something most web developers care about. Every tip you can get to squeeze some extra performance helps user experience and search ranking.
I loved this article since I am always on the lookout for tools that will make my workflow more efficient. Even though I had heard of a few I discovered at least a couple that I will be using on my next project.