Any headline which ends in a question mark can be answered by the word no

Came across a reference to Betteridge's law the other day. From Wikipedia, footnotes omitted:

Betteridge's law of headlines is an adage that states, "Any headline which ends in a question mark can be answered by the word no." It is named after Ian Betteridge, a British technology journalist, although the general concept is much older. The observation has also been called "Davis' law" or just the "journalistic principle."

Betteridge explained the concept in a February 2009 article, regarding a TechCrunch article with the headline "Did Last.fm Just Hand Over User Listening Data To the RIAA?":

This story is a great demonstration of my maxim that any headline which ends in a question mark can be answered by the word "no." The reason why journalists use that style of headline is that they know the story is probably bullshit, and don’t actually have the sources and facts to back it up, but still want to run it.