Go here (http://lastguy.jp/).

Enter a web page and click "LAST GUY!".

Click to start. Lead your guy around with the mouse. Clicking makes you run, but you lose stamina. When you get near people, they follow you. You have to get as many people to the escape area as possible in the amount of time.

I suggest you start with Google.

Awww man, the Ayonae version is crapped!

Aye... doesn't work well with "matted" sites... sets up weird borders. Using Fark.com was interesting, since it let you walk through the text but it slows you down...

Ebay.com is a good moderate-difficulty one.