Truecaller - Find a person by a name or phone number worldwide for free using Truecaller.
FeedbackSpark - FeedbackSpark is in-product micro survey tool that helps product teams to remove guesswork from product development. Harness the voice of customer to drive product success.
Google Contacts - Google Contacts is Google's contact management tool that is available in its free email service Gmail, as a standalone service, and as a part of Google's business-oriented suite of web apps Google Apps.
Zazzy - Design and sell your own 3D printed jewelry
FullContact Card Reader - Automagically scan biz cards into LinkedIn/Gmail contacts
Love & Robots - Create your own 3D printed jewelry & accessories online