Collaboration Tools

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The "Alternate email address" option allows you to link other email addresses with the primary email address you registered with your YouSendIt account.

YouSendIt: Online File Sharing and collaboration with FTP Replac

https://www.yousendit.com/
What is WizeHive? WizeHive is an online platform that combines a form builder, task manager, activity feed, and workflow tools — all wrapped inside of a modern social interface. Organizations use it to quickly build and deploy powerful data driven web apps. http://www.wizehive.com/

WizeHive

http://ideascale.com/

IdeaScale

...New social networking technologies can be used to solve down-to-earth human needs, by enlisting millions of Americans in service to the country."
http://cl1p.net/ This is the old home for cl1p.net. As of Oct 31, 2011 cl1p.net has been shutdown. But in some ways cl1p.net lives on, the source code to the cl1p.net site has been posted to github so anyone that wants to can run a their own copy can.

cl1p.net

Mindmapping

http://www.yourdraft.com/

YourDraft.com - Online sharable WYSIWYG document drafting and ed

Create and share content instantly without registration. The WYSIWYG editor allows fast and flexible drafting. You can give others the right to edit or only read your page and add replies.

EtherPad: Realtime Collaborative Text Editing

http://etherpad.com/ This open source release has already led to many efforts to foster further development and provide EtherPad-like services. If you are looking for a service based on the EtherPad software, or want to run your own EtherPad server, see the following links (not affiliated with Google, use at your own risk):