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.
E-Z Contact Book - E-Z Contact Book is an easy to use yet powerful Windows application for managing contact information. You can use it as a personal contact address/phone book, business directory, or a customer database, or a reminder of birthdays and other events
Google Calendar - Spend less time managing your day & more time enjoying it
NoteCase Pro - NoteCase Pro is an advanced multi platform outliner that helps you organize your text notes into a...
Apple Contacts App - Access and edit your contacts from personal, business, and other accounts with the Contacts app.
Contacts Express - Address book program provides unified, flexible and simple interfaces for you to manage and lookup contact info of people and organizations.