Last week I dropped by MinecraftEdu.com to see their new and improved website. Upon scrolling down I happened upon some familiar looking tweets - mine! If you're interested in teaching with Minecraft then you should definitely check out MinecraftEdu.com. They provide teachers with a great tool to get started and are continuing to grow the idea and community. While it won't be absolutely everything you'll need, it will provide for some great first steps. Check them out either way.