This morning's NYT contained an article on search engines which contained a claim of such discombobulated mathematical incompetence, I just had to share:
It’s no secret that even with their recently-announced alliance, Yahoo and Microsoft will lag well behind Google in the hugely profitable search and search advertising business. How far behind? With a combined 28 percent of the American search market, Yahoo and Microsoft could double their usage and still trail Google, which accounts for 65 percent of the market.
I don't have to get all Mark Liberman on you to explain what's wrong with this claim. If Microsoft/Yahoo! doubled their 28% market share, that's 56%, at which point they would no longer trail Google who could have no more than 44% of the market.
Maybe it's finally time to stop reading the NYT...