20 Things I Learned about Browsers and the Web is a online "book" from Google that describes 20 different things about the internet, web browsers, and online applications.

The book is well written, easy to understand, and nicely designed. Some of the "things" are: the internet, cloud computing, web apps, html/javascript/css, HTML5, 3D in the browser, staying safe online, plugins, and open source.

"20 Things..." is a great way to learn more about the internet and WWW and can be used with students to teach them about the internet.