My science news blog: a hold-over from my PhD days. Sadly had to shut it down.
OCW Search: a search engine of the full course contents of OpenCourseWare materials from the top universities around the world.
Cligs: I built and marketed from scratch a URL shortener aimed at professional internet marketers. It did real time analytics, geotargeting, and social media monitoring. I sold it in late 2009 to Mister Wong.
Font Fox: I used to be a typography junkie, and Font Fox was a place I collected my favorite free fonts. It was the first site I ever sold.