Google Referrals
Google is now paying $1 for ever person that an Adsense user refers to sign up for Firefox with a google toolbar. Explorer Destroyer has some code (which isn't totally XHTML strict, but you can fix that by adding a couple tags as well as adding a blank src="" and alt="" to the image tags) that will allow you to alert IE users that their browser is muy malo and they should switch. Just say no to IE!