Bridging the African digital divide - with a ‘toaster’

Lines form at open-source software vending-machines.

Human error sparks mud volcano

Squeezing the most out of a gallon

As gas prices rise, clever drivers adopt new rules of the road.

Powerhouse clubs

Hurdle for future cities: human habits

Technology will not solve all green problems, some say.

Brighter future for solar panels: silicon shortage eases

New factories could end a production logjam. But consumers may not see prices drop before 2010.

No-pressure way to capture CO2

African park bridges the ‘Last Mile’ of digital divide

Low-energy Web centers and classes on using computers open up better jobs for locals.

When disasters strike, citizen journalists turn to Twitter

Why more news outlets are setting up bureaus in the blogosphere.

At MIT, low-tech inventions with a high impact

The school's basement D-Lab exports simple solutions to the developing world.

More computer brands chase the '$100 laptop'

Bye bye, bulk. New lines of tiny PCs fit both in your purse and into third-world classrooms.

A low-cost route to the Web

California start-up Meraki powers several thousand wireless networks across 70 countries, bringing the Internet to those who otherwise could never afford it.

Thinkers gather to act on world problems

Pop!Tech conference in Camden, Maine, aims to harness synergy to tackle issues.

Simple sun-cooker takes off as a way to help Darfuris

Grass-roots giving for the solar cooker, donated to women who fled Darfur, takes root in the US.