Interesting approach, but i am not sure how feasible it is. You can't ask for donations every month. I am not in this business, but i think i would go the flic

Interesting approach, but i am not sure how feasible it is. You can't ask for donations every month. I am not in this business, but i think i would go the flickr route for video sharing. As in, offer a paid account which you can opt to make private or just allow some people to see(like family videos). Make the payment terms easy(so yearly or per GB stored or something). Also, offer some kind of export mechanism to make customers feel more easy about their data in case something wrong happens. So aside from the digital export, offer a Blu-ray mailing option or something similar. As for amateur remixes, i would offer affiliate links to content used(just like youtube did) and also offer a tip-if-you-like-this option which i will take a small part of. So again, i am not in this business and monetizing video sharing websites without premium content like movies and video clips is difficult, but this is what i would do.