YouTube is good, but not ideal, and the lack of a download link is somewhat annoying. So I spent some time researching good free media hosting sites for large files and ISOs. Torrent sites are particularly good for hosting the high-definition versions.
There is a problem with the world of illegal piracy that we have online today, but it's not what the RIAA and MPAA want you to think it is. It's that we've become accustomed to participating in illegal copying, and yet it is still illegal. This means that we have the illusion of a body of work that can be built upon, remixed, and combined with new work, but if real artists practice this commercially, we are exposed to legal attack.