I discovered this list courtesy of Mark Morford. I occasionally read Morford, with reluctance, because he's such a shrill ranter. This list, however, is worth sharing: what have you changed your mind about? why?
Take a look at Morford's other "Top 12 Top 10's," including Parade Magazine's analysis of the world's cruelest dictators (Parade Magazine, people!), and Fox News' Top 10 Climate Myth-Busters.