MergeNote - Real-Time Group Note Taking

MergeNote is an online collaborative real-time note taking service.

CanvasDropr - Real-time Group Photo Editing

CanvasDropr is a sharing network that encourages you and your friends to share and work on images and videos in a real-time manner.

SquadMail - Easy Email Folder Sharing

SquadMail lets you share email folders from your mailbox with any individual or group of collaborators, thus eliminating the need to constantly forward emails and CC recipients. Use it to share emails, notes, pictures and attachments with any email service.

Funl.it - Ideate, Collaborate, Iterate

Funl.it allows you to quickly reach consensus on an idea. You can invite anyone to anonymously give their approval and feedback, then you can make some changes if you want and send out a new iteration.

Could be useful when trying to select a date for that office potluck lunch!

Update: Funl.it is no longer online.