This is a collaborative video editing tool that lets users upload their own footage and edit it either alone or with other collaborators. It requires a sign up
"WeVideo offers a powerful collaborative editing solution for a wide range of media, and with Google Drive providing an easy and safe place to store your media files, users never have to leave the cloud."
Make collaborative videos in your web browser with this amazing site. Just upload your images, videos and audio and invite others users to edit your project with you. As the files are stored online your students can access the project from home or at school. The videos do not have watermarks and they can be easily embedded into your site or blog.
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About QuickScreenShare.com:
QuickScreenShare.com is the simplest way to share screens with anybody:
No registration required and completely free.
Nothing to install for sharer or sharee (assuming you have Java).
Works on Windows, Mac, and Linux.
Even lets you remotely control mouse and keyboard!
This free service is a side project from the creators of Screencast-O-Matic.com and is still in BETA. We use it extensively for remote user support and collaboration. The current version creates a direct peer-to-peer connection, so if you're on a super duper secure school or company network it may or may not be able to connect, but in most cases you'll find it works quite well so give it a shot! "
The MixBit app and website helps people create videos together. The app lets you record, edit and publish videos as short as one second or as long as an hour-right from your mobile device. The MixBit site is also the first site that lets users collaborate with each other and remix videos uploaded by the community.
"Sketchcasting is a new way to communicate something online by recording a sketch, optionally with your voice speaking. Any sketch can then be embedded on your blog/ homepage for people to play-back, and you can also point people to your sketchcast channel here (or let them subscribe to your sketchcast RSS feed). Sketchcasting is new but it's based on an old principle: the whiteboard (or the napkin in a bar) on which you sketch something to get a concept across... or to just have some fun. "