This is some of the stuff I've decided to make public.
Bird, a simple, extendable Python client for Twitter.
Euterpe, a music synchronization framework (copies your music to your music player recoding it if necessary).
Furl, a universal URL collector.
Watchbot, a monitor for services and servers.
There is also a CookBook with some neat stuff there.
If you want to contact me, use the following e-mail: firstname.lastname@example.org