Online advertising is toxic. Everything from the execution (code), the push, the presentation, the stalking, the need for isolation, and the horrid insecurity. I understand that ads are the life blood of much of the web, but so long as that is the case there are many sites I won't visit and just about everything else I will block ads.<p>The only site I frequently visit where I don't feel dirty and violated by ads are the video ads on YouTube because I know they are screened for in appropriate content and aren't littered with 30 spyware packages. Of course YouTube makes up for that with horrid ad/stalking behavior everywhere else.<p>I even bet Facebook would be an ethical company if not for all the behaviors associated with chasing ad revenue.