97 Things Every Programmer Should Know looks like it will be an interesting book. Edited by Kevlin Henney, it contains a series of 97 (I'm not quite sure why 97 exactly, its a fairly weak gimmick) very short, pithy pieces of advice aimed at software developers to help them craft better code.
I have submitted a number of entries to this project.
You can take a look at all the entries submitted so far, and perhaps contribute something yourself. The site is a Wiki, and is now open for collaboration by the wider programming community.