Giulio (through his feed on Delicious.com) pointed me to a nice post from "benevolent Python-dictator" Guido van Rossum. The essay describes a few general rules for improving performance of Python programs, and it also reminds us of "an odd corner of Python", the array module. Go and read it, it's worth it.
It also made me discover "an odd corner" of the Python website: the collection of Guido's essays. As demonstrated by the original post, this page is much more interesting than Guido's own blog, and so it's very disappointing that it doesn't have a feed to monitor. Mmhh... Edit: well, stuff there looks a bit stale, I guess Guido doesn't use it very much anymore. Still, it's the sort of thing that should have a feed. Maybe python.org should move to django? ;)