We use Google Docs for all our collaborative script writing for T4LT. Google Spreadsheets, Forms, Presentations and Drawings complete the suite of Google Doc tools.
These collaborative document creation tools offer many advantages for group projects or for the individual who wants access to files in the cloud - no need to worry about lost or broken external jump drives (but you will need access to the Internet).
Documents in Google Docs can be private or public, shared, exported in a variety of formats, edited in real time by all those who have access, and more. Check out Google Docs for yourself!
Sample Presentation - The Many Ways to Use Flip Video Cameras in the Classroom