He's shifted to a focus on oil prices, but the underlying policies remain the same.
The German government's official spokesman is using Twitter to rapidly disseminate information directly to its citizens, and the staid German press is freaking out about it.
Amateur astrophotographs posted online represent a massive untapped resource. Now astronomers have worked out how to mine it
The Medieval Warfare on the Grid project is akin to applying the simulation game Sid Meier's Civilization to real questions of history.
The best of the rest from the Physics arXiv this week
Small amounts of radioactive material have turned up in rainwater in the Bay Area, say nuclear scientists
Cloud Girlfriend will use Facebook and other social networks as a vehicle to get real women to chat.
A new computer model of the way heat is emitted by various parts of the Pioneer spacecraft, and reflected off others, finally solves one of the biggest mysteries in astrophysics
Friends' opinions will affect search results, thanks to a feature inspired by Facebook.
If advanced civilisations have mined their asteroid belts, we should be able to see the evidence, argue astronomers