Looks like China's blocked Twitter as we approach the anniversary of Tiananmen Square. This means there's going to be an awful lot of blog posts about it; everyone from human rights to tech blog will be interested.
I saw the news first via Mike Butcher TechCrunch UK article that I read via Google Reader. TechCrunch UK sometimes uses AdSense for Feeds to monitise their RSS.
At the end of the article (which contains swearing - I know some sensitive souls read this blog) Korean Air is unlucky enough to have an ad placed.
This probably isn't a case of bad geographic targeting as Korean Air does fly from Europe to China (or China / Mongolia as their dropdown offers) but I really doubt the airline fancies the brand association.
Tip of the week: incoming negative keyword "Tiananmen".