GPLv3

You can't swing a dead cat over your head lately without hitting a blog post which mentions version 3 of the GNU Public License (an appropriately cynical reader would correctly point out that this would require swinging a dead cat at a fairly narrowly-focused RSS reader). I don't really know a lot about the GPL, but here are a couple of resources which look useful:

1. a post on Luis Villa's blog (some poor bastard in law school)
2. the GPL FAQ on the GNU Web site
3. a critical view of GPLv3
4. speculation about Microsoft's reaction