Human Interface Subtleties in Software
Disoriented writes "As a GUI designer and programmer I enjoy sites like this. The info here is fairly old, dating back to Classic Mac OS, but it illustrates the kind of details users look for in a well-polished GUI." Mac-centric, but there are good points made in here for anyone working on GUI applications -- less bitter than the Interface Hall of Shame, too ;)
One of his major points is the size of GUI targets. The edges and screen corners are easy to hit, but grossly underutilised by GUI designers. This causes more RSI in users than necessary. I've worked some apps with poorly chosen target locations and defaults that were just murder on my wrist.