I just had to write this one up. It’s hilarious – provided of course, you’re familiar with the world of Free Software and Open Source. If you’re not, what it amounts to is that some (many) programmers give away the code they write so that it can be used, altered, and/or improved by others. Don’t try to worry about where it money comes from; it’s generally not part of the equation at all. It’s the giving and the improving that matters.