$5Au has read a lot of investment books, and, at one time, held Series 7 and 63 Securities licenses (in a previous life). However, $5Au is embarrassed to admit never hearing the term "Dark Pools" before. It doesn't surprise me a bit, though. Is anyone else familiar with this? BTW, for listeners of Bob Brinker's Moneytalk radio show, this site does a terrific job of summarizing each show and holding him accountable.