YouTube

CGP Grey

CGP Grey posts animated videos that sort of… explain things.

Subscribers: 2.9 million

SciShow

Hank Green, Michael Aranda, and Olivia Gordon delve into scientific subjects that defy our expectations and make us more curious! 

Subscribers: 4.3 million

Wendover Productions

From travel, to economics, to geography, to marketing and more, each video will leave you with a little better understanding of our world.

Subscribers: 698,000

Crash Course

Hank Green teaches you Philosophy; Andre Meadows teaches you about games; and Shini Somara is teaching you Physics!

Subscribers: 5.78 million

Real Engineering

Interesting answers to simple questions.

Subscribers: 420,000

SciShow Psych

SciShow Psych is all about the human brain and how we humans interact with the world.    

Subscribers: 128,000

Wisecrack

A collective of comedians, academics, filmmakers, and artists who are super curious about the world around us. Smart and funny.

Numberphile

Brady Haran makes videos about numbers - it's that simple.

Subscribers: 2 million

Space Time

Explore the outer reaches of space, the possibilities of sci-fi, and anything else you can think of beyond Planet Earth.

Subscribers: 834,000

Physics Girl

Physics videos for every atom and eve.

Subscribers: 615,000

Animal Wonders

We show our animals being amazing and share behind the scenes footage of what it's like to care for 80+ exotic animals and share education locally and on the internet.

Subscribers: 97,000

Idea Channel

Here's an idea: a PBS show that examines the connections between pop culture, technology and art.

Subscribers: 750,000

Infinite Series

Mathematician Kelsey Houston-Edwards offers ambitious content for viewers that are eager to attain a greater understanding of the world around them.

Subscribers: 95,000

College Info Geek

Thomas Frank makes videos that help you be awesome at school and college.

Subscribers: 666,000

Second Thought

Science, history, politics, religion... basically everything you're not supposed to talk about at the dinner table.

Subscribers: 330,000

Eons

Join hosts Hank Green, Kallie Moore, and Blake de Pastino as they take you on a journey through the history of life on Earth.

Subscribers: TBD

In a Nutshell

Videos, explaining things. Like evolution, time, space, global energy or our existence in this strange universe. 

Subscribers: 4.2 million

SciShow Space

Hosts Hank Green, Caitlin Hofmeister, and Reid Reimers share everything from just after the beginning of time to the most recent breaking news in space exploration.

Subscribers: 840,000

Real Life Lore

Answers to questions that you've never asked. The world is an exciting place and there is so much to know.

Subscribers: 1 million

Mental Floss

A channel where knowledge junkies come to get their fix of trivia-tastic information! Subscribe and check for new episodes uploaded every other Wednesday!

Subscribers: 1.3 million

Minute Physics

Simply put: cool physics and other sweet science. Created by Henry Reich.

Subscribers: 3.26 million

Minute Earth

Science and stories about our awesome planet! Created by Henry Reich.

Subscribers: 1.26 million

Healthcare Triage

Dr. Aaron Carroll who explains healthcare policy, medical research, and answers other questions you may have about medicine, health, and healthcare.

Subscribers: 235,000

Computerphile

Videos all about computers and computer stuff. Sister channel of Numberphile.

Subscribers: 790,000

How to Adult

An edutainment channel dedicated to teaching everything you need to know as an adult that school never taught you.

Subscribers: 207,000

It's Okay to Be Smart

Joe Hanson, Ph.D. is a curious group of atoms in a curious universe, and he's here to tell you how it all works.

Subscribers: 1.3 million

The Financial Diet

Personal finance in a way that doesn't make you want to curl up in a ball and cry. Everything you wanted to know about money + living better, even for the total beginner.

Subscribers: 122,000

Deep Look

DEEP LOOK is a science video series that explores big science by going very, very small, from KQED and PBS Digital Studios.

Subscribers: 300,000

BrainCraft

Talking psychology, neuroscience and why we act the way we do.

Subscriber: 350,000

The Art Assignment

We take you around the U.S. to meet working artists and solicit assignments from them that we can all complete. 

Subscribers: 150,000

Draw Curiosity

A place to stimulate and entertain your curiosity with interesting science and language facts. 

Subscribers: 19,000

 

Music

Airplane Mode

Music videos and streaming performances by an indie rock band from New York City.

Audience: 30,000

The Outer Vibe

Infectious surf disco from Nashville, TN.

Audience: 30,000

 

Podcasts

Hello Internet

CGP Grey and Brady Haran talking about YouTube, life, work and whatever.

Estimated listeners: 750,000
Limited availability

Dear Hank and John

Hank and John Green answer questions, give questionable advice, and talk about Mars (the planet) and AFC Wimbledon (the 3rd tier English football club).

Estimated listeners: 120,000

Showmakers

The guys behind Wendover and Real Engineering talk to their fellow creators about the process of making things.

Estimated Listeners: 40,000

Welcome to Macintosh

A podcast about Apple and the community around it. Each episode brings you stories about technology, culture, and design.

Estimated Listeners: 30,000

Release Notes

Joe Cieplinski and Charles Perry discuss the business side of iOS and Mac app development. Inspiration, design, trends, and tools — everything but the code

Estimated Listeners: 3,500