GiftBuster - Wish list registry & shopping list app
Setalist - The easiest way to make awesome lists for the internet
Mystery Gift Bot - Don't think about what to buy, let it be a mystery
Hunter TechLookup - Create lists of websites by technology for free
Macbook Prices by Performance - Find the cost effective Macbook for your needs
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!