Don't trust advertising

What is "Malvertising"?

This is a type of online attack outgoing from an advertisement on a website. The attack code analyses your system and installs malicious software by using flaw in a computer system.
One reason you shouldn't visit a website with advertising on it..
Well, there will be not so much websites left. 10kmlauf.blogspot.de is an exception.
Or you use an ad-blocker for your browser.