For the life of me I can't find the article or discussion online, but I remember reading about the Walden Turn, named for Mike Walden of the Wolverine Sports Club - essentially you kept your bike more upright and leaned your body into the turn, thus allowing you to continue pedaling through the turn. I've been doing that for maybe 15 years now, to where it's ingrained behavior on a fixed-gear, and so far it has worked nicely. I think that maneuver was also described in Delong's Guide to Bicycles and Bicycling. It's a holdover from the era when almost all U.S. racing, road or track, was on fixed-gears.