urbanAsk was a real-time, location-based, social search application that combined the simplicity of Twitter with the gamification of Stackoverflow. It was available on iPhone, Android, and the web.
I wrote a twitter bot called @ThinkingStiff to take the #1 spot on cursebird.com, a (now-defunct) site that tracked tweets with curse words in them. I wrote about it in my blog.
A blog with n-grams 1 I've created from the books in the Google archive over the last 200 years. Trends in the usage of terms can reveal interesting things about the collective consciousness over time.