If you’ve been wondering what all the fuss about Ruby on Rails is about, nettuts+ has a great screencast for you. It’s over 40 minutes long and includes test-driven development to test the application’s features. Best intro to Rails I’ve found, hands down.
I have big geek-love for Mercurial, but all the cool kids are hanging out on Github these days. I think the next project I release the code on (coming soon!) I’ll try hosting on Github. Which means I’ll have to learn Git. Luckily, Github has some great learning resources, including this good introduction video. Now I have to figure out how to get Git to run well on Windows XP. Don’t ask.
And finally, in the doesn’t-have-anything-to-do-with-anything category, check out this TED Talk from Justin Hall called Tipping: Freeing energy from the grid. I keep reading interesting stuff about graphene; cool to see it in action. He doesn’t use the word graphene, but I think that what he’s talking about for the window stuff.