In all of my browsers, IE10, Firefox21, Chrome, when I click to go to a new page (e.g. an Experts Exchange search), I often get sent to a different page (e.g. the Meatworks).
I can fix this in Firefox by disabling every advertising script with google in the name. I can't use IE or Chrome because they do not allow users to disable Ads.
However, I am perplexed that no-one else seems to have this problem, so I suspect I have a virus or some other kind of malicious software.
I have Microsoft Security Essentials which seems to keep me safe, apart from this problem.