Solar start-up 1366 Technologies is working on a technology that promises to dramatically cut the cost of solar cell manufacturing.

Intel Labs is showing off technology that would allow consumers to collect and analyze environmental data and then share it over the Internet.

Exactly 10 years ago, during the height of the dot-com mania, the Nasdaq reached its all-time high of 5,408.62 on March 10, 2000. It has never recovered.