Social Source Commons

Web-based calendar and to-do list program.

Hosted internet service platform with easy to use tools to manage users, email, webcontent,news, events, newsletters, faq, intranet, album, maillinglists, showrooms, stakeholders and more tools specifically designed for Non Profit Organizations

Organizer, tasks and calendar on your desktop wallpaper

Hosted meeting scheduler

The Activist Mobilization Platform is a CMS bundled with a large number of Activist Tools.

Budgeting and time-tracking software.

Web-based calendar tool.

Share, browse, and subscribe to iCal calendar

Collaboration platform for groups. Combines the features of discussion forums, email lists, calendars and social networks. Groupsites can be configured to be public, semi-public, or private and secure.

A Productivity Suite - helps businesses organize themselves with tools like shared calendars, contacts, projects, meetings and more

Meeting scheduler.

eGroupWare is a free enterprise ready groupware software for your network. It enables you to manage contacts, appointments, todos and many more for your whole business.

eGroupWare is a groupware server. It comes with a native web-interface which allowes to access your data from any platform all over the planet. Moreover you also have the choice to access the eGroupWare server with your favorite groupware client (Kontact, Evolution, Outlook) and also with your mobile or PDA via SyncML.

eGroupWare is international. At the time, it supports more than 25 languages including rtl support.

eGroupWare is platform independent. The server runs on Linux, Mac, Windows and many more other operating systems. On the client side, all you need is a internetbrowser such as Firefox, Konqueror, Internet Explorer and many more.

Web-based calendar and addressbook tool.

Search engine/calendar for non-profit events (Charities, Communities, Cities, Universities, Arts, Theater, Schools and other organizations) all over the nation, and provides an exclusive list of events in your area.

Messaging and collaboration server.

Tool for spreading the word to multiple publications, event calendars and online listings in the San Francisco Bay Area

A free web-based calendar.

IM, e-mail, contacts & calendar, customized news, rss, minis, and file storage web package.

On-line Calendar

Calendaring application for Mac OS X

Web application that allows you to selectively share your Calendar with your contacts

Online calendar

Desktop client option for accessing business e-mail, calendars and applications on IBM Lotus Domino server.

Event management service with free and paid versions.

An open source groupware suite.

A powerful platform for content, community and collaboration websites

Free online schedule management service.

Scrybe is an online organizer that caters to today´s lifestyle in a cohesive and intuitive way.

Synchronize Google Calendar and Apple iCal.

SugarCRM provides organizational tools such as a calendars, project-tracking lists, and account-management features.

Google Outlook Calendar Synchronization Tool

A full-featured, Free Source Software (GNU/LGPL), multilingual, Wiki/CMS/Groupware written in PHP and maintained by an active and international community of volunteer contributors.

Major features include articles, forums, newsletters, blogs, a file/image gallery, a Wiki, drawing, trackers, a directory, polls/surveys and quizzes, a FAQ, chat, a banner management system, Webmail, a calendar, maps, charts, Mobile Tiki (PDA and WAP access), RSS feeds, a category system, a theme control center, workflow, live support, Shoutbox, ACLs, and more.

On-line Calendar

On-line calendar

On-line calendar

WebCalendar is a PHP application used to maintain a calendar for a single user or an intranet group of users. It can also be configured as an event calendar.

Free online schedule management service.

Zanby is a free individual and group organizing platform. Individuals and organizations can start or join unlimited groups, use a robust events management system, upload documents and photos, manage group members, and more.