There are a lot of excellent reasons to get involved with an open source project. You can learn a new language, improve your existing skills, be challenged by a community that is at the top of their field or even get better at managing complex distributed projects. There are also dozens of ways to participate. Open up a project's bug tracker and find an issue that needs to be fixed. Write a useful new extension or plugin. Even if you don't code, just about every open source project out there could use more testing, more documentation and tutorials and help handling the load on their support forums and mailing lists. If you are a heavy user of open source software it feels great to give something back to the community that has contributed so much.