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.
Tweet Tray - Tweet quickly from your desktop without any distractions.
Open Contacts - Open Contacts is an advanced address book program for managing contact info of individuals and...
Typefully - Write & publish great tweets, without distractions
FullContact Card Reader - Automagically scan biz cards into LinkedIn/Gmail contacts
Minimal Twitter - A distraction-free browsing experience for the new Twitter