Oliver Wendell Holmes Library Catalog
The OWHL collection includes documentaries and many other "non-fiction" films. If your search returns too many results, limit the "media type" to DVD. In addition, you can expand your search by including the DVD collections of all NOBLE libraries.
Click on the image to go to the Moving Images library of free movies, films, and videos. This library contains thousands of digital movies uploaded by Archive users which range from classic full-length films, to daily alternative news broadcasts, to cartoons and concerts. Many of these videos are available for free download.
CSPAN Video http://www.c-spanvideo.org/videoLibrary/
YouTube is the leader by volume in online video and there is some excellent content available. Proceed with caution, because the site was developed to allow users to share original videos worldwide, and so there is a lot of junk.
Hulu is known as a TV-watching site, and it is an excellent source of documentaries.
Free full length movies at Google Video can be found simply by going to
the Advanced Search and changing the drop-down "Duration" menu to
"longer than twenty minutes". As is the case with YouTube, lots of the content is very low quality.
is a video search engine, providing access to thousands of films from hundreds of sources. Of particular interest for research are the news sites.