The Test Bed
As web developer's we are always toying around with new code and new technologies. We used to create test pages in whatever site we were working on at the time to figure out how to do new things. That became a problem when it came time to find the code if we wanted to use it again.
The Test Bed site was created so we have a place to work on new code, to test new technologies and to figure things out. Then - when we want to use it again - it is easy to find, we have examples to see and we already have code created.
It was going to be an internal site but the decision was made to make it public in hopes that it would benefit other developers and to provide a place for us to showcase our work on new technology so that our clients can see what can be done. It turned out to be a great sales tool.