Tiki Wiki CMS Groupware is a full-featured, Web-based, multilingual, tightly integrated, all-in-one wiki, CMS, and groupware. Tiki can be used to create all kinds of Web applications, sites, portals, knowledge bases, intranets, and extranets. Tiki offers a very large number of features "out-of-the-box". It is highly configurable and modular. All features are optional and administered via a Web-based interface. Major features include a robust wiki engine, news articles, discussion forums, newsletters, blogs, file and image galleries, bug and issue trackers, a link directory, polls/surveys and quizzes, FAQs, a banner management system, calendar, maps, mobile access, RSS feeds, a category system, tags, an advanced themeing engine (Smarty), spreadsheet, live support, shoutbox, inter-user messaging, menu generator, advanced permission system for users and groups, internal search engine, external authentication support, and more. It was formerly named TikiWiki.
phpGroupWare (formerly known as webdistro) is a multi-user groupware suite written in PHP. Its provides a Web-based calendar, todo-list, addressbook, email, news headlines, and a file manager. The calendar supports repeating events. The email system supports inline graphics and file attachments. The system as a whole supports user preferences, themes, user permissions, multi-language support, an advanced API, and user groups.
iCalcreator is a PHP implementation to create, parse, select, and edit iCal calendar files for non-calendar systems like CMS, project management systems, and other applications able to support calendar information like agendas, tasks, reports, todo lists, and journaling data, and able to communicate with calendar applications. iCalcreator features the ability to create, parse, edit, and select calendars and calendar components. It is composed of a single class file with a simple interface, and is oriented around iCal calendar component properties.
ApPHP Medical Appointment is an online doctor and therapist appointment system for medical clinics. It makes it possible for patients to book appointments using a Web interface, and for clinic administrators to approve or reject appointments. Visitors can search for doctors by specialty or name, and view doctor availability.
TKDO is a master TODO list with command line and PyGTK interfaces. It takes all your VimOutliner todo.otl outlines, merges them into a single flat list, auto-sorts them, filters them, and adds support for things like contexts and recurring events. It also has a snooze button, to mark tasks as "don't bug me about this for a while". The entire system is based on plain text files, with a GUI to make certain tasks easier and faster. Due to its plain text nature, it's easy to extend or customize the system with short scripts.
OpenGroupware.org is a set of applications for contact, appointment, project, and content management. It is comparable to Exchange and SharePoint. It is accessible using Web interfaces or using local clients via WebDAV, GroupDAV, and CalDAV. Custom applications can be developed using the XML-RPC API. OpenGroupware.org runs on almost every GNU/Linux system.
Buni Meldware Communication Suite is an enterprise groupware product providing an email server, calendar server, and a Web mail client. The Web mail portion is written using Adobe's Flash and provides a rich cross-browser experience. Protocol support includes IMAP, POP, SMTP, iCAL, WCAP, and more. It uniquely supports full database email storage as well as file system storage of emails on major database platforms, and is easily installed via a Web Start graphical installation process.
Scalable OGo (SOGo in short) is a groupware server built around the SOPE application server. Unlike OGo, it is focused on scalability instead of depth in functionality. The Web interface uses human-readable URLs and can be accessed according to REST Web service ideas. Notably, it requires no server side session at all. The server stores all internal data in the iCalendar format, and therefore has no data model inconsistencies with native clients. It easily connects using GroupDAV connectors.