Well, there's 2 kinds of filtering, malware from viewing an ad, and malware from clicking an ad. At least we should be permanently blocking ad networks that fal

Well, there's 2 kinds of filtering, malware from viewing an ad, and malware from clicking an ad. At least we should be permanently blocking ad networks that fall for the first kind of hack. A whitelist of the top 100 ad networks that haven't let through malware in the past year, if you want to be on the list, submit your code for auditing. Easy way to get on the list: Only let people create pure text or graphic ads, no code.