Here you can find a list of links, mostly composed of friends and tools.

Now that I think about that tools aren’t much different from friends: they are hard to find and easy to lose, you must work on them if you want them to be functional, you can’t live without them, after a while of “using” one you start seeing its flaws as strengths and in the end it doesn’t matter which one you “use” as long as it “works” for you.