Linden Lab's CFO explains how the economy works in the virtual community.
A series of upsets could spell trouble for Second Life's virtual economy.
Nissan unveils new technologies that can identify drunk or drowsy drivers.
A biotech startup wants to coax fuels from engineered microbes.
Developers search for killer apps for the social operating system.
Plazes lets you leave electronic bread crumbs for friends.
A new natural-language system is based on 30 years of research at PARC.
First Solar's thin-film technology is now challenging silicon panels at large-scale solar-power facilities.