Google Http Redirection

Thanks to Google, you can now redirect anyone to yahoo.com from google.com. Click below -

Google to Yahoo

Basically you can redirect to any site you want, the http request looks like this -

http://www.google.com/pagead/iclk?sa=l&ai=FnzbwS&num=67575&adurl=
http://www.yahoo.com

I think Google doesn't verify ai= or num= field, you can just put whatever input to it and still get it parsed properly, for example -

http://www.google.com/pagead/iclk?sa=l&ai=abcdef&num=12345&adurl=whatverURL

This is the trick from one of the spam I received today which redirects me to download malwares and it still works now, hopefully Google fixes it as soon as possible.

Peace ;]