Sixteen must-see documentaries from 2015 you may have missed, courtesy of the Huffington Post.
http://www.huffingtonpost.com/2015/01/21/sundance-film-festival-2015-documentaries_n_6510998.html
For example:
Playbooth is where visitors can experience LocoMotive's playlist: an assortment of kick-ass videos, movie trailers, short films, songs, books, book reviews and readings, plus interviews, TEDTalks and other exciting material from the world wide web.