Social Source Commons

Helps you to easily maintain tasks and appointments on your computer.

Tools that allow for collaborative project management - possibly including functions like "planning, scheduling, cost control and budget management, resource allocation, collaboration software, communication, decision-making, quality management and documentation or administration systems" (list from Wikipedia) -- see also: http://en.wikipedia.org/wiki/Comparison_of_project_management_software

Meeting scheduler.

Event organization service.

GanttProject is a tool for creating a project schedule by means of a Gantt chart and resource load chart. GanttProject allows you to break down your project into a tree of tasks and assign human resources that have to work on each task. You can also establish dependencies between tasks, like "this task can't start until this one is finished". GanttProject renders your project using two charts: Gantt chart for tasks and resource load chart for resources. You may print the charts, generate PDF and HTML reports, exchange data with Microsoft(R) Project(TM) and spreadsheet applications.

Operating via a network, Groove Virtual Office software allows teams of people to work together as if they were in the same physical location, through their website.

Messaging, collaboration, workflow automation and application server.

Excellent free web-based tool to coordinate meetings between many people without wading through emails.

Yutiti is web application for scheduling resources (human resources, manufacturing, construction) and projects. It provides user-friendly graphical interface, interactive Gantt charts,project & resource management.

Online Event Registration and Membership Management. US$3.50 per registration.

Schedule your team, employees, volunteers, etc. Beautiful layout, and great functionality.

This affordable calendar software allows you to customize multiple views, add colors, print or publish to the web what you want. Power of a desk top application with flexible web interface allows you to schedule and plan as needed. Non-Profits save 25%

A great set of tools for people working across multiple time zones, include current time for any city in the world, multi-time zone meeting scheduler, and custom calendar tools.

Meeting, scheduling, and calendar tool, with phone service free to nonprofits.

an easy way to find when everyone is available for a meeting or event