Ideas: New programs offer incentives to motivates students to study.
One design envisions farms of giant buoys tethered to the ocean floor.
In a new era of social giving, nonprofits tap the Web’s social networks.
They lure the industry with incentives, while cracking down on adult content.
The technology behind movie magic.
Column: Children need to be protected online, but these new bills go too far.
A NASA satellite designed to study carbon emissions is sleeping with the fishes somewhere off Antarctica.