Coming from the world of Education I often had classes where the instructor needed a photo/video dump to share with students or have students themselves share of dump videos or assignments. Each of these has their pluses and minuses. Most are free, as that is my usual rule for education, but some may have levels of cost.
If you have used any of these comments on the goods and bads are welcome, if you have others that are not listed here please share. As always links are encouraged.