TED stands for “Technology, Education, Design” and there are thousands of interesting talks available free for everyone. They are all quite short – usually with a time limit of 18 minutes or less. There are several ways to access them:
via the TED Website at https://www.ted.com/talks
via YouTube at https://www.youtube.com/TED
via the TED app, which you can download to tablets, smartphones or Chromebooks. This is free from your usual app provider (Google Play for Android devices or the App Store for Apple devices).
If you want to get a personalised approach, when using your web browser click or tap on https://www.ted.com/. That immediately shows the main topic areas, which include:
Technology, Science, Design, Collaboration, Innovation, Social Change, Health, Nature, the Environment, the Future, Communication, Personal Growth, Humanity, Society, Identity, Community, Ideas of Self-improvement, Insights about issues that matter, Inspiration or Motivation.
This is explained at https://www.ted.com/recommends. If you follow this through, you will get personalised emails that offer further suggestions of talks that will interest you.