Some things that I've made:
Save Crate Tag based bookmarking
CuteUID Python package to generate cute UIDs
What's My 'Hood? Answering "what neighborhood is this?"
Wall of Ads See if you can spot the fake
PlayingTonight.NYC NYC music listing map
Bit Longer Chrome Extension to expand bit.ly links
@@Art San Francisco based art publication
Save Crate
CuteUID
What's My 'Hood?
Wall of Ads
PlayingTonight.NYC
Bit Longer
@@Art