Photos: Tech's 10 most-hyped product launches
After the original World of Warcraft sold more than 7 million copies, Blizzard Entertainment came out with its first major expansion, Burning Crusade . Fans lined up for hours at stores around the country and the world, quickly snapping up more than 2 million copies.














Harnessing the power of waves
Planting solar gardens
Fill your car for $1.10 a gallon?
