The list is updated. If you think there is a tutorial/tool/etc that I missed, let me know.
I wrote a guide of setting up Eclipse as an Elemental work environment (better searching of the game XML files etc).
Oops, I saw that when you posted it a couple days ago, and made a mental note "I need to make sure I add that to the list" and then promptly forgot when I was going through and updating. Sorry about that. It's up now. I put it in the tools section for now, but if you think it fits better under the guides I'll move it (it's a guide to set up a tool, so really it should go under both )