I'm planning many other posts on open-source topics---I've got it bad---but not any other line-by-lines at the moment. If you're interested in this kind of thi

I'm planning many other posts on open-source topics---I've got it bad---but not any other line-by-lines at the moment. If you're interested in this kind of thing, I _highly_ recommend Meeker's, Rosen's, and St. Laurent's books. St. Laurent's, from O'Reilly, might be my least favorite of those three, but it's the closest to the line-by-line style. Meeker's coverage of GPL issues is second to none. Rosen's the best general introduction. Very approachable. Hits some fundamental concepts.