Task management applications

Basecamp is a web based project management application. It improves the communication between people working together on one or more projects.

Remember the Milk is a webbased to-do-lists service. These lists can also be used for collaborative tasks.

Huddle is a network of online workspaces ("Huddles") where users can come together to work on documents, plan projects and collaborate on ideas.

Web-based project and task manager for your team.

ProofHQ is an online application to manage review and approval of designs, artwork and documents.

Backpack is an online tool to organize your business and share information. Backpack is developed by 37signals.