btonkinson.com
Links

[+] Tools and services
Play.com Play is one of the best and cheapest online stores I have found. Their CD, DVD and game prices can rarely be beaten.
Direct2Drive.com Direct 2 drive allows you to legally pay for and download mainstream title PC games.
EBay.com Still the best online auction site to sell your unwanted goods or lay your hands on some cheap stuff.
Paypal.com PayPal is more or less essential if you use EBay but is a very useful mechanism of paying for goods and services on other internet sites.
Plaxo.com Plaxo is a free service that enables you to synchronise your contacts between different places. Latest versions allows you to share things you have found on the net with friends as well.
Oanda.com FX converter Oanda provide quick and simple currency conversions online.
Freecycle Freecycle is a free organisation which allows people to give away unwanted items. You can give away your unwanted stuff here or look at what's on offer in your area.

[+] Fun
Caedes.net Caedes features some really good free desktop wallpaper images.
Loquax.com This site catalogues internet based competitions you can enter.
hotornot.com HotOrNot.com allows you to rate photos of people from 1 to 10. A great way to waste time or get your own photo rated!
Stumbleupon.com Stumble upon can present you with more or less random web sites it thinks you will find interesting. You can then choose if you find the site interesting or not and based on these decisions it will learn what you like.
Shazam.com Shazam uses an amazing technology that can identify a song purely from what it sounds like. If you link your mobile number to the Shazam site you can log into the site to see which songs you have "tagged".
Grooveshark.com Using Grooveshark you can listen to pretty much any song you like for free. What's more is you can tell it which ones you like and dislike and it will attempt to show you new music it thinks you will like.
Gamespot.com Gamespot is the best site I have found for computer game news and reviews.
QuizYourFriends.com QuizYourFriends allows you to write your own quizes about whatever you like and mail them to your friends.