SmartSheet - Changing the Way Business Professionals Organize and Track Their Work

Smartsheet is flexible and familiar like a spreadsheet, but is the only organizational tool designed to help you organize and track your work. It's an online service that allows teams to create lists of activities and tasks, share them online and update them via e-mail. We are built on an open-source stack and have created our own AJAX toolkit for the rich user interface.

The Perfect Combination of Spreadsheets, E-mail and File Sharing to Organize Team Activity.