A fun little multiplayer game, all possible in the browser thanks to web sockets.
An experimental prototype that tracks the online buzz around BBC programmes (before they disappear down the memory hole of the iPlayer's time-restricted playback).
An even more speculative version of The Long Bet. Given a supposition (e.g. "What will the world be like when custom satellites are as easy to design and launch as your own website is today?"), you can add to a list of positive and negative outcomes.
A PMOG mission where players learn about the password anti-pattern.