Occasional blog posts about Ruby updates, tools, editor tweaks, and random snippets. You might also be interested in my newer project that docuements lesser-known features in Ruby: Idiosyncratic Ruby.
Rails migrations are easy to understand and easy to write. However, you can save some unnecessary key strokes by applying these three tips :)
Transferring an existing project to Rails 3 is not that hard, but it usually cannot be done in 5 minutes.