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.
Google Calendar - Spend less time managing your day & more time enjoying it
Open Contacts - Open Contacts is an advanced address book program for managing contact info of individuals and...
Lightning Calendar - Organize your life — it’s about time!
FullContact Card Reader - Automagically scan biz cards into LinkedIn/Gmail contacts
Rainlendar - Rainlendar - Customizable desktop calendar