Most people probably would not install add blockers except that ad volume and lack of quality have reached the point where they make it difficult to browse the

Most people probably would not install add blockers except that ad volume and lack of quality have reached the point where they make it difficult to browse the web. Installing an ad blocker is a necessary act of self defense. In my own case I installed Ghostery after finding that ads from particular websites reliably caused Chrome to crash or consume 100% of CPU on Mac OS X. www.sfgate.com was a particular offender but suffice it to say their numbers are legion. At some point enough is enough.