https://github.com/kennethrapp/phasher - a perceptual hashing class for PHP, abandoned because I suck at algorithms. It's also old and badly written. But it works and for some reason people fork it so have fun.
https://github.com/kennethrapp/journalist - general purpose livejournal client (PHP), created so I could write my own blog client for my website and crosspost, but I no longer really care about livejournal so meh.
https://github.com/kennethrapp/embedbug - page crawler and attempt at an open souce embed.ly-ish plugin (PHP) - it does work but every project i've started which uses it has been abandoned because I don't have the time.
I've currently got a PHP/Laravel clone of Hacker News which kind of sort of works but not well enough that I'd want to push it to github unless people really want to dig into that. I barely work on it anymore and there's no documentation all.
Also i'm working on some c++ and C# projects, including a todo list based on my final project this semester. I'll probably either post it in a week or two or just forget it ever happened.
And this (https://gist.github.com/kennethrapp/0ef17d2145f2a6e38cca) was going to be a general purpose Hacker News userscript. I got as far as getting the callbacks to work before just giving up and using other people's already working scripts. Someone might find it useful.