Street Food Mapper - A web app for searching food trucks in real-time.
Greenlight - An app that grades and recommends sustainable shopping.
The New Forker - An interactive map of restaurants reviewed in The New Yorker
Swag Fair - Sustainable swag made by small businesses
Roaming Hunger - App and site to find any food truck anytime, anyplace.
Ethical Resources - Huge repository of ethical alternatives to mainstream stuff