I started out contributing where I could in the 1990's with SourceForge. Contributing to a project still was a chore to find out what exactly was needed. When GitHub came around in 2008, things got much easier. You can see on my OpenHub statistics page that things became much easier to contribute after that time.
This page is mostly historical now and is basically here to remind myself of the various contributions I've made to open source projects in the beginning. I tend to lose track of what I've done and eventually I suppose all these links will bit-rot as well.