I've been using DNS to filter out the worst offenders. I don't mind most ads, so my list of domains is quite small. But, I've found it to be an effective tool.

I've been using DNS to filter out the worst offenders. I don't mind most ads, so my list of domains is quite small. But, I've found it to be an effective tool. I agree, however, that anytime a site is broken that I'm left wondering if I'm responsible because I've inadvertently blocked a CDN or something important.