Groupy / contact by group – Manages Contacts by Groups

AContact Group Manager organizes your contact group in a expandable list. With it you can manage group and group members where you can mix and match different modules. It fully synchronizes with your gmail account. AContact is an advanced contact manager with plugin support. […]

Xobni is a way to manage and search your contacts and email through Outlook and on the BlackBerry. These profiles contain relationship statistics, contact information, threaded conversations, shared attachments on social networks including LinkedIn, Facebook, and Twitter. […]

AddressBookONE is a free address book application which has the ability to pull contacts from outside connections including Gmail, Facebook, LinkedIn, Exchange Servers, and Plaxo. At the time of launch, work was still progressing to add Yahoo, Twitter and Windows Live to the list. […]