TED Talks are influential videos from expert speakers on education, business, science, tech and creativity, with subtitles in 100+ languages. Ideas free to stream and download.

Free online lectures. Explore, create, and track lectures from the world's top universities.

The Great Courses have added over 30 free lectures from their latest courses to their official YouTube channel. We've collected them here in this playlist.

Jun 29, 2026 · Stories from the OpenCourseWare community reflect the profound impact of sharing knowledge and the transformative power of open education. Recent high school graduate Adrian …

Lectures are used to convey critical information, history, background, theories, and equations. A politician's speech, a minister's sermon, or even a business person's sales presentation may be …

We're living through oil wars, wildfire smoke and extreme weather driven by a warming planet. But environmentalist Bill McKibben says one thing is finally going right: the price of clean energy has …

3 days ago · The meaning of LECTURE is a discourse given before an audience or class especially for instruction.

Explore thought-provoking 40-minute lectures by experts at bars across major cities. Join us for engaging discussions and unique experiences!

Gain an understanding of history, museum studies, and curation by looking at, organizing, and interpreting art, artifacts, scientific curiosities, and the stuff of everyday life.

Each course includes a full set of class lectures produced in high-quality video accompanied by such other course materials as syllabi, suggested readings, exams, and problem sets.