Bullwhip Extranet - The World's FREE Web-Based TeamWare - Scattered Team Members Can Now Privately View, Edit and Manage Group News, Discussion, Documents, Voting, Email and Calendar Tools From ANY Net-connected Computer, Anywhere in the World. No software to download, install or configure.
eCircles.com - Designed to keep friends and family in touch with each other. Provides shared calendar, discussion area, lists (to-dos, book recommendation), gift registries, photo album, email within the group, and more. A bit awkward to use.
FamilyPoint - A place where you can create a web site to help your friends and family meet and stay in-touch. Provides shared calendar,... [what else? I need to review this more...]
HotOffice Technologies - "Anytime Anywhere Officing. Everything teams need to work better. Free Trial available. Lets you share and retrieve documents, send and receive e-mail, update your calendar and contact manager, host bulletin board discussions, hold online conferences, make travel arrangements, and more!"
Instinctive eRoom - [Need to review this... Appears to require installation of softward components...]
Involv - Free Web Teaming - Excellent site for group team work. Provides shared calendar, discussion area, to-do lists, polling mechanism with bar graphs showing results, and more. Very slick looking. [Site is gone. It was great while it lasted.]
Jump! - Provides free calendar, email, address book, task manager, and groups. [Need to review more...]
MagicalDesk - "Work. Virtually. Anywhere." Provides a personal virtual desktop with calendar, to do lists, address book, email, files, and bookmarks. Looks very sharp and has an excellent demo. [Note: this probably fits better under Virtual Offices because it does not seem to be a Team Room or team focused.]
QuickPlace - A Lotus product that lets users create an instant workspace on the Web.
Visto Briefcase - "Helps you store your stuff and connect you to the information and people you care about - email, calendar, files, photos, group activities and more." [Note: This is partly virtual office, but can be configured to let other users access your calendar, so has some teamwork potential.]