OpenGrok - OpenGrok is a fast and usable source code search and cross reference engine.
Ushahidi - Ushahidi gathers data from various sources and reports incidences around the world in real time.
Krugle - Krugle is the complete enterprise solution for search targeted to the development organization.
Dataminr - Real-time Information Discovery
GrepCode - GrepCode.com is a code search engine built by developers for developers to search and browse open...
Visual Society - Build a website to showcase and/or sell your photos online.