Joel on Software is an excellent blog to read if you're interested in software development.
His latest entry on evidence based scheduling is a good read.
Software scheduling is a hard problem, but this entry describes a method that looks much more promising than anything else I've read about. There's enough detail here to create your own system too (which is a big plus). Of course, after looking at the FogBugz pricing (and having some casual conversations with a few very satisfied customers), I'm not sure I would bother implementing it myself (it probably makes more sense to just purchase a license).
