Thanks. I am familiar with physicsforums.com but will check out metafilter.com as well. Thanks again for the info...I've previously recommended physicsforums.com, to similar queries. It's basically what this site would be, if it took its pretensions to maturity and productivity seriously. If you want a place that does more politicized topics well, I'd recommend metafilter.com (although you have to pay a nominal fee and endure a waiting period to begin posting there - one of their mechanisms for keeping the trolls at bay).