I thought etbe's questions, "Two Questions for All Serious Free Software Contributors", deserved an article, so I posted one. I think quite a lot of what people write in their diary^Wblog entries here would be more useful as short articles. There's no better way to increase the incidence of useful articles than to post them.
dmarti: The only reason I can think of ever to throttle a CPU is if it's running a "screen saver". (Quote marks because they don't save anything on an LC display.) Then, of course, the best clock rate is zero. On a related note, I think it's irresponsible that (e.g.) Gnome doesn't default to "xset dpms 0 0 1800" or similar.