where can I find rare, weird DVDR's online?

While looking for my favorite nostalgic giant bunny movie Night of the Lepus on DVD, I found a cool website that sells DVDR’s of stuff that’s not so much out of print as “never available for commerical purchase in the first place” - bizarre old pyschedelic films, forgotten documentaries and unaired TV pilots, creepy sub-porn Arthouse fair, and so on.

I’ve always been attracted to these weird pieces of filmic effluvia - Mexican wrestling movies, super-8 psychedelic music videos, the worst japanese giant monster movies, etc. Where else online can I find stuff like this for sale? I’m not really looking for particular titles as much as places like the aforementioned cool website where I can browse stuff.

Something Weird Video