1.) Are charter schools the answer to a smarter educational system? Bill Gates thinks so.
2.) Chipmaker Qualcomm is partnering with Mattel to develop augmented reality for electronic toys.
3.) Framing the Gulf of Mexico oil spill as an environmental disaster: does it help or hurt?
4.) The surge in green technology has sparked an international rush to secure rare metals such as lithium, cobalt and vanadium.
5.) Will Britain's ban against airport growth hinder its competitiveness on the global economic stage?