The new rules should help promote hydrogen fuel cell vehicles as well, regulators said.

FORBES: California Sets New Rules To Boost Zero-Emission Car Sales

Major record companies are discovering that during an age of dwindling CD sales, cell phones can help them promote bands and even sell more music.

FORBES: An 'Incredible' Marketing Ploy

The Zevco fuel cell uses an efficient, silver-based catalyst to promote the electricity-producing reaction, instead of a traditional platinum one.

ECONOMIST: Clean living in Iceland

's (nasdaq: MSFT - news - people ) computer keyboards to Nokia 's (nyse: NOK - news - people ) cell phones, and a few smart businesses are already using Bluetooth to increase efficiency and promote a safe workplace.

FORBES: FedEx Bites Into Bluetooth