SugarSync is a cloud service that enables active synchronization of files across computers and other devices.

SalesHandy email tracking tool for Gmail allows you to know whether your sent emails have been read or not.

Hightail is a file sharing and collaboration platform.

Lookeen Desktop Search is a desktop search for Windows and Outlook tofFind documents, emails and more.

Kopano is an open-source groupware application suite originally based on Zarafa.