PHOTOS: Wet Lake Found on Saturn
Lake has liquid -- but enough to water ski?

Help Over Twitter: Think Globally, Tweet Locally
Web site helps socially responsible local businesses and consumers find each other.



Twitter - Social responsibility - Online Communities - Social Networking - Trending and Popularity

PHOTOS: Comet Lulin
Backwards-flying, green comet makes its closest approach to Earth today.

MTV Launches Online 'Morality Meter'
Online app helps teens draw line between innocent and inappropriate digital behavior.



Social Sciences - Associations - Video game - Advertising - Andre Agassi

WATCH: Electric Eyeglasses to Aid the Blind
A special pair of glasses turn images into electric impulses felt on the tongue.



Glasses - eyeglasses - Business - Shopping - Health

PHOTOS: Animals Battle Extinction
Humpback whale wanders into New York harbor.