* Scheduling meetings: [[meet-o-matic]].
 * Shared online calendars: [[online calendars]]
 * Mailing lists: [[mailing lists]] to help a community email each other.
 * Use an online [[room booking]] facility.
 * Send instant messages to one or more people using an [[instant messaging]] tool.
 * Talk to one or more people at low cost using [[internet telephones]].
 * Alert people to aspects of your project using online [[news feeds]]
 * Share diary-like updates about your work online using a [[blogging]] service.
 * Collaborate in the management of project tasks using the online project management software such as [[dot project]] 
 * Try using [[wikis]] to easily collaborate in creating web pages.