The Fab Swingers site has been built entirely with open source products. If you are interested in what we are using and the reasons why head over to the Architecture section.
We are going to try to factor out some of the code that runs the site and release back into the open source community. The first product to be released is Are You Human? which is a simple library that generates a random image, this can be used to check that a website is dealing with a human being and not a script. This can be useful to guard against automated sign ups or automated attempts to crack passwords.