Rubyists: are you watching RubyPulse regularly? This show has rapidly become one of my must-see screencasts. Each episode is just a few minutes long, and demonstrates just enough of a useful Rubygem to give you an idea of what it is and what it’s good for. As someone who dislikes lengthy tutorial videos (I prefer textual documentation for in-depth learning), I find these to be the perfect length. Highly recommended.
(Disclaimer: my Hammertime gem has been a featured project.)