One of the core pieces of Ajax is a simple scripting language called JavaScript. JavaScript is the accidental superstar of the Web 2.0 world. Brendan Eich happens to be the creator of JavaScript and gives us a history lesson in his presentation from the Ajax Experience Conferenence.

From Wikipedia:

Eich is best known for his work on Netscape and Mozilla. He started work at Netscape Communications Corporation in April 1995, working on JavaScript (originally called Mocha, then called LiveScript) for the Netscape Navigator web browser. He then helped found mozilla.org in early 1998, serving as chief architect. When AOL shut down the Netscape browser unit in July 2003, Eich helped spin out the Mozilla Foundation.

In August 2005, after serving as Lead Technologist and as a member of the Board of Directors of the Mozilla Foundation, Brendan became CTO of the newly founded Mozilla Corporation.

Content creation should not be recondite. It should not be this bizarre arcana that only experts and gold-plated computer science gurus can do.
         – Brendan Eich