The internet is full of stuff. From the weird, to the mnudane, to the useless and useful. I've compiled a list of some sites I consider to be extremely useful. Check it out.
Wikipedia - Is considered to be the biggest multilingual free-content encyclopedia on the Internet, with over two million articles and still growing.
Gmail - Need a new Email? Gmail is Google's free webmail service, with over 2,600 Megabytes of storage (and growing every day). It also integrates instant messaging right into its email.
Google Earth - Fly to your house. Just type in an address, press Search, and you'll zoom right in. This is the power of Google earth, offering you satellite imagery, maps, terrain and 3D buildings to put the world's geographic information at your fingertips
W3Schools - Full Web Building Tutorials all free. Of-course the internet is full of places where you can find tutorials on building your own website, however W3Schools is an a good starting point. It has all the resourses you need to teach you to build your own website all in one location.
Firefox - Firefox is an award-winning, open-source web browser. Its faster, secure and fully customizable to your online needs. It integrates powerful features to make your online experience even better.