I am a documentary fan and have been looking at several online documentary site. Unfortunately while these sites are great collections, they are limited to 1500 to 2000 films only. The internet has thousands of documentaries, just impossible to find them easily. Documentary Guide was something that was shared with me over Facebook, and I used the site.
It is simple, it is SEARCH platform for someone who is a FILM BUFF. I loved the idea of ability to SAVE my searches, which i thought was brilliant. I don't know how big their collection of results is, but I have yet to be dis-satisfied with the experience. It is fantastic collections of millions of entries. I personally would recommend this site to all those looking for a documentary that you can't find easily. 5 stars to documentaryguide.com