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.
Outplanr - Turn your to-do list into a real work plan
Apple Contacts App - Access and edit your contacts from personal, business, and other accounts with the Contacts app.
Clean Google Calendar - Makes Google Calendar look nicer & launches as a desktop app
Windows Contacts - Windows has many extraordinary organizers, and in the event that you include distributed storage, then you presumably have more.