Clearbit - Clearbit provides Business Intelligence APIs
Inbox Creature - A super cute virtual pet, delivered right to your inbox.
ZoomInfo - ZoomInfo is a B2B database providing detailed business information on people and companies.
HippityPip - Teach phone numbers to kids
InsideView - InsideView aggregates and curates all the company and contact data, news and social insights, and professional connections you need to do business better.
Splitwise - Splitwise is a free tool for friends and roommates to track bills and other shared expenses, so that everyone gets paid back. On the web, iPhone, and Android!