Hunter TechLookup - Create lists of websites by technology for free
Startup Toolkit - Interactive how-to guides to launch your startup
Techmap.io - Techmap is a workplace search engine to find companies using technologies (e.g., Rails, PHP, Java, etc.) that are used internally. Finally, a "Google for Workplaces" that helps people find a place to work with technologies they love!
JumpStart Toolkit - A pack of tools and goodies to jumpstart your startup
xZeitgeist - The most popular tweets categorized and ranked, every day
REALITYLINE - REALITYLINE is the first OSL (Online Startup Launcher) Platform.