ThoughtWorks Podcasts. There are two podcasts available, where Martin Fowler and Jay Fields talk about DSLs.

Atomic Commit in SQLite. An interesting read, if you're into database internals.

Live Mongrel Debugging and Recovery. A nice article that also leads to the following entries.

Mongrel Timeout / Throttle Misnomer. Yep, Mongrel's -t parameter is confusing.

A Couple of Quick Mongrel Tips. Some nice Mongrel tips.

Process title support for Mongrel. Now that's just cool. Nice and simple way to monitor at least some basic Mongrel process states.

TextMate Tip - The Ruby Bundle. Ciarán Walsh regularly posts a bunch of TextMate tips. Well worth reading.