Football Blueprint users are allowed to share their animations and whiteboard drawings online. This site has built a user database that is pretty well done. It looks like users send in their files by email and the site owners organize and post them.
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It would be nice to have an automatic way of doing that, so the coach can post his drills and plays online to share with players and assistant coaches. He would upload them directly through the software, choose a category to post it to, decide whether he wants it to be public or protected (like a youtube video), then post it. A user visiting the site could then download and save the file, and be able to open and edit it on his own copy of the software.