Interesting video on trading leveraged ETFs from the guys who make them ...Drexion http://bit.ly/pi9ik5 $TNA $TZA $BGU $BGZ http://www.lightspeed.com/webinar/2011-05-04%2016.31%20Rules%20of%20Engagement%20for%20Leveraged%20and%20Inverse%20ETFs.wmv