IE 3.68%
Safari 2.87%
Firefox 2.73%
Chrome 1.96%
IE 3.68%
Safari 2.87%
Firefox 2.73%
Chrome 1.96%
IE $4.13
Safari $3.95
Firefox $3.03
Chrome $1.98
It'd be interesting to see if IE6 users are providing any value to you. While web developers may gnash their teeth at the mention of IE6, I wonder if there is a financial incentive to continue supporting it. After all, the time to tell users that they need to use a better browser isn't when they come to your site to buy something.
Think about it, a less experienced user is more likely to click an ad because they may not have the skills (or the confidence) to track down where to buy the advertised item on their own. Whereas a more experienced user is more likely to be able to go to their favorite online store to find an item, search several sites to find the best deal, look at competing products to compare features, etc.
It's no different than any brick and mortar store. The level of help the sales clerks tend to provide is very disproportionate, some people know exactly what they want and need no help, others need a lot of hand holding. The difference online is that we have a lot more metrics about these sorts of things.