here is a list of sites that you guys may want to consider adding your to adblock.. i'm sure there are plenty more to be found:

http://*.2mdn.net/*
http://*.adbrite.com/*
http://*.adlegend.com/*
http://*.adonspot.com/*
http://*.advertising.com/*
http://*.akamai.net/*
http://*.atwola.com/*
http://*.cnn.net/*/ads/*
http://*.doubleclick.net/*
http://*.extreme-dm.com/*
http://*.falkag.net/*
http://*.fastclick.net/*
http://*.fatpenguinmedia.com/*
http://*.googlesyndication.com/*
http://*.lhj.com/*
http://*.mediaplex.com/*
http://*.msads.net/*
http://*.pointroll.com/*
http://*.revsci.net/*
http://*.ru4.com/*
http://*.tribalfusion.com/*
http://*.valueclick.com/*
http://*.xxxtoolbar.com/*
http://*.zedo.com/*
http://*/RealMedia/ads/*
http://*intellitxt.com/*
http://ads.msn.com/*
http://ads.stileproject.com/*
http://adtology.com/*
http://rad.msn.com/*
http://us.a1.yimg.com/us.yimg.com/a/...h/promotions/*
http://www.businessweek.com/common_scripts/adlogic.js
http://www.businessweek.com/common_scripts/oas_logic.js
https://*.akamai.net/*