There used to be one called ProPoolVideo.com but it went down. Caromtv.com has excellent 3-cushion billiards videos, and I think links to a smaller page that has a handful of pool videos, but I can't find that link now. They weren't too great except for an 8-pack by wu chia ching.
What people figured out is that instead of running their own website, and spending their own money, they can just use youtube instead. There's a TON of good stuff on youtube. And even though there's a 10 minute limit with it, you can now view them in higher quality (in some cases) and there are some who work around the limit. BClub has a special youtube account and their matches can go past the 10 minute limit. Others post videos in parts... like the color of money took 80+ parts but if you don't mind clicking the next part every 10 minutes it's not too bad.
Unfortunately, youtube is it. Other sites stopped bothering cuz there's no money in it. Some carried pool torrents (like the one I linked) and got shut down due to legal issues. Other people would upload pool movies to sites that allowed longer videos and higher quality (like stage6.com) but those sites also went under because they couldn't compete with youtube.
Good luck.