I've used Incompotech a few times for projects of my own and I'm happy to say that it's a great resource for free music. It has very detailed, yet basic, instructions on how to attribute the music to the creator and features some neat tracks (although some are little cheesy). Having used this one before, I can commit to saying that I'd venture to try this one out with middle school students and definitely high school students. With plenty of up-front modeling and lots of reinforcement along the way, I think this would be a great resource to make student-produced video  go from quiet and boring to emotional and energetic. As with any download, it would be important to know that the school offers each student enough storage to save these files, but that'd be the only major issue with this resource. None of the tracks have words (to my knowledge) so everything is school-appropriate. It's easy to use and is even searchable by genre and "feel".

OpenPhoto is a free source of stock photos that only require attribution. The photos are searchable and span many organized categories. Some of the photos are high quality, and others aren't quite what I'd call HD, but it's fairly easy to track down what you need. I see no reason why middle school and high school students couldn't use this site. Anytime they needed a picture for a PowerPoint or some other project they were working on, I could direct them to this site to get great photos that are easily attributed to the creators thanks to handy copy and paste instructions on the individual photo's site. I don't see many issues arising with this one. I'm hoping everything here is clean (haven't searched too deeply to ensure it's all school appropriate). Overall, it looks like an easy way to find pictures to add to presentations, projects, and other activities without infringing on copyright.

Bottled Video is a great resource for absolutely free video footage of just about anything you can imagine. They pride themselves on being there for students and other video producers who think that "if only we had this shot we could do complete this project".  Bottled Video could be used by middle school or high school students to add some neat footage to video projects. It's a high quality site with high quality footage so I'd give this resource an A+. Honestly, I didn't even know sites like this existed, but I'm glad to know now. Obviously projects would be the best way to integrate this resource into the classroom. I really think it would be easy to teach the kids to use as well. All they really have to do is include a line in the credits and they're good to go. As long as the school gives them ample amounts of storage to download the videos, I don't see any problems in using this one.