It began posting video of the presentations online in 2006, and there are now more than 2,100 TED Talks that have been viewed well over a billion times. We've collected the 20 most popular ...

Of the more than 1,800 TED Talks, which have been viewed a total of 2.5 billion times across all platforms, a few have risen to the top. The following 20 talks are the most popular ever on Ted.com.

Host Manoush Zomorodi inspires us to learn more about the world, our communities, and most importantly, ourselves. Get more brainy miscellany with TED Radio Hour+. Your subscription supports the ...

None of these Obama videos is real said Supasorn Suwajanakorn A researcher who created a fake video of President Obama has defended his invention at the latest TED talks. The clip shows a computer ...