WhatRuns - Extension that helps you identify technologies used on any website at the click of a button.
100 under 100 - For those of us that didn't get into Forbes' 30 under 30
Checklist Generator - Create checklists for free and host them wherever you want.
#IWriteBecause - Every author has a story to tell, what's yours?
listshare - Create beautiful, interactive lists to share with the world.
Twitter Archive Eraser - Delete thousands of your tweets in one go —Well beyond the 3200 limit.