Stackshare - StackShare is a comprehensive website that gives its users the chance to organize and share their technology stack with the rest of the community.
Capitan - AI powered shopping list: Never forget anything at the store
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!
Mona - Personalized shopping app that goes on shopping missions
xZeitgeist - The most popular tweets categorized and ranked, every day
Deponi - Always know what you have at home.