In this issue, you'll hear how physicians can now use DNA sequencing to uncover the causes of rare genetic disorders. You'll learn about an online community where people are free to be wrong - and how big investors want a piece of the action. You'll hear about the dilemma that new energy technologies could face once the federal stimulus funds have dried up. You'll learn how a simple innovation is threatening the porn industry's traditional way of doing business. You'll hear about Chrysler's MultiAir technology, which claims to vastly increase fuel economy. And you'll learn about a mobile device Microsoft is working on that can be used in places where GPS signals are unavailable or weak.