What panman said in spades. The person-hours you spend on the internet can have an influence but it's a much smaller factor on ad click rates then other demogr

What panman said in spades. The person-hours you spend on the internet can have an influence but it's a much smaller factor on ad click rates then other demographics like age, gender, educational level, etc. No disrespect to people who sew, but you compare ad click rates on a sewing blog vs a javascript blog with the same traffic and I'd wager the sewing blog has a much higher click rate. And as such, I'd highly doubt, at least until Chrome actively courts hardware manufacturers, that Chrome Ad click rates compare to IE. IE is the default web browser for many computers and ad clickers are more likely just to use the default web browser that comes installed on their system (the whole addon toolbar business is based on the fact that users won't (or don't know how to) switch their default search engine back once it's installed).