fruux - Free service that takes care of your contacts, calendars and more so you don't have to.
Kin - Kin is money for the digital world. It is used to generate value through a shared, decentralized cryptocurrency in a digital ecosystem of apps and their users.
FullContact - Put the power of full contact information into your web or mobile apps.
Plan - Plan is a better way to organize.
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.
Clean Google Calendar - Makes Google Calendar look nicer & launches as a desktop app