Project time estimation
Surfing through PHPkid's weblog, I ran into this joke about IT project estimation.
It reminded me of this excellent post that I read sometime back on the trade-offs between scope, time and cost in project management (some talk about the same stuff in terms of time, cost and performance) . Obviously, most of us do not have the luxary of 'hiring' the right clients - but we do have the responsibility of setting the expectations rights (wherever possible).
Incidentally, Johm Musser of Columbia University has the most comprehensive online resource on project management that I have seen.