What is the best place to learn a new skill online?

University courses sit next to a stranger's tutorial, and the stranger is often faster.

1

YouTube

Free tutorials for almost anything, with no way to tell who is qualified.

2

Coursera

University courses and certificates, taught by the universities themselves.

3

Khan Academy

A free nonprofit curriculum covering school maths and science end to end.

4

Duolingo

Languages, gamified hard enough that people keep 1,000-day streaks.

5

Udemy

A marketplace where anyone can sell a course, quality included.

6

Skillshare

Short project-based classes aimed at creative work.

7

MasterClass

Famous practitioners talking about their craft, beautifully shot.

8

edX

Open courseware founded by MIT and Harvard.

9

freeCodeCamp

A free, nonprofit path from nothing to employable web developer.

10

Codecademy

Programming taught in a browser window with instant feedback.

11

LinkedIn Learning

Workplace software and management courses attached to your profile.

12

Reddit

Communities where practitioners answer beginners for free, bluntly.

13

Books

The oldest option, still the one that goes deepest.

14

Chess.com

One skill, taught by playing it several thousand times.