Firefox is the web browser that upholds the highest principles of the World Wide Web. It supports and defines the Web as a good place to bea place where all people can freely and safely participate, without having to tip their hat to anyone. Those are fighting words.

When Amazon.com opened its virtual doors on July 16, 1995, it was just one among several online booksellers. As Amazon embraced the technology to categorize and display millions of books in one space, people embraced the ability to search for and purchase books in a new way.

eBay is more than just a web site. It's a community of millions: people in all parts of the world, all of whom are buying and selling with varying degrees of experience, ingenuity, and, of course, intelligence.

Greasemonkey is a Firefox extension that allows you to write scripts that alter the web pages you visit. You can use it to make a web site more readable or more usable.

Internet Relay Chat (IRC) has continued to grow in popularity since its inception way back in 1988. Millions of people all over the world now use IRC to chat with friends, discuss projects, and collaborate on research.

PayPal wasn't the first company to build an online payment system, but it might as well be the last. With over 50 million registered accounts, PayPal is rapidly becoming a household name.

Yahoo! is an impressive example of what can happen when a hobby takes on a life of its own. In 1994, Jerry Yang and David Filo began publishing a personal list of sites they found interesting on the emerging World Wide Web.