jrepin writes: Version 3.3 of Kolab.org, a free and open source groupware solution, has been released. It is now possible to add tags to email messages, work with notes right in the webclient, and manage your resources more easily. Kolab.org 3.3 introduces a new folder navigation view that allows you to search and subscribe to shared calendars, address books, task lists etc. directly from within the respective view. The calendar got a quickview mode which allows you to open an undistorted view on a single calendar. The user interface can now be fully operated with the keyboard and has support for screen readers as well as voice output as suggested by the WCAG 2.0 Guidelines and WAI ARIA standards.