Netflix pretty much only recommends docs ... She knows me so well.
What kind of documentaries are you into? I like all kinds.
Jesus Camp - (( Shudder)) This one I've seen twice, and if I had a friend over who had never seen it, I would watch it again.
The Queen of Versailles - I am amazed that the film crew happened to be there to film this family at their peak of richness and excess (building the hugest house ever) and their subsequent fall (house not done and up for sale)
Sons of Perdition - FLDS movie; boys who are kicked out or leave polygamist families.
Blackfish - Sad. About SeaWorld and killer whales.
Food, Inc - About our corporate controlled food industry.
Tent City USA - Uplifting! Homeless people in Tennessee.
The Elephant in the Living Room - Stories about people who own large animals as pets. Contains the saddest scene I have ever seen in a movie ever. The rest isn't so sad though.
The Institute - Weird. About some "experiment" or social group in San Francisco, like a large scale RPG, but is it a game?
Hot Coffee - The REAL story behind the lady who sued McD's for spilling hot coffee on herself. A must see.
Bronies - Great example of the kind of doc that takes a small sub-group of people and makes them relate-able to anyone. About the unexpected fan base of My Little Pony.
Long Way Down - Ewan McGregor (omg so hot and talented) and his bff taking a motorcycle trip from Europe to the southern tip of Africa.
Long Way Round - Same thing just across Europe and Mongolia into China and Siberia all the way to Canada and then to NY. Hour long episodes, also books. Jealousy Inducing (what's a girl gotta do to get a free BMW touring bike and a support crew?)
Anything narrated by Ken Burns? - Prohibition, The Dust Bowl, National Parks I get these from the library if I'm sick. Watch, nap, wake up, doesn't matter that you've missed an hour, keep watching, by the end - you're better!
Magic Camp - Like Bronies, takes you into a world you might not have known about, and makes you love the folks who are featured.
Big Rig - Follows different semi-drivers. Not the most exciting, but I like big trucks.
The Woman who Wasn't There - About a lady who claimed to be in one of the towers during 9/11, had all kinds of appearances, made friends in the support groups, but, well, you see the title.
Those are all Netflix. I could list more if you want. PBS's website has a lot of their docu-shows like Nature, Nova, Frontline.
My favorite Nature episode was the Animal Misfits.
Nova - Fractals - A must for anyone who has been tripped out by those designs. Snowflakes, forests, antennae, so cool.
Frontline - Actually watched one on credit cards a while back. I like Frontline - is that a doc or a news show? Maybe because it is documentary-like but on a very current topic.
Edited because I saw people giving their own descriptions and I thought that was a cool idea.