A long, but interesting, discussion of open-source software development by and for libraries, and why the author thinks open-source projects are destined to outnumber and ultimately replace proprietary ones:

No, I’m not suggesting it’s going to happen; I’m suggesting that it is happening. I’m suggesting that, within a few years, libraries’ software expenditure distributions will have changed. Rather than paying outside companies to employ library programmers, software developers will work directly for libraries. The code will be different, it will be better, and it will be open source. And, if library software is like other software, there’s a good chance that a lot of the code will be contributed by volunteers—people who aren’t even employed by libraries, but are interested in the problems and possibilities presented by creating software for library users and employees.