I learned about WeVideo https://www.wevideo.com/ at ISTE 2012. It is an online collaborative video making tool. It is exactly what I think is missing from the web 2.0 landscape when trying to get our students to work together. I have used Google Docs for collaborative script writing and storyboarding, but I've always struggled with video editing and production and making sure my students all participate. This may be a solution. If you have experience with it or know of another tool that works well, please send it my way.