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Does drinking something hot during the summer help you stay cool?

New York Times business reporter Charles Duhigg says that consumers and innovation are the big losers in the patent wars. "Patents have become a toll gate on the road of innovation," he says.

Researchers are developing a technology that could draw carbon dioxide directly out of the air. It's very expensive now, but it works, and one company is already trying to identify a market for all that captured greenhouse gas.

The pixelated images meant to be scanned on a smartphone to take the user to a website may be too involved for too little reward, branding consultants say. Though the codes are more prevalent, only 6 percent of mobile subscribers in the U.S. scan them, and a newer technology may soon overtake it.

The visit by Obama will be the first by a sitting president to world's largest social network.

In an effort to figure out whether the stereotype of the "bro" had a racial component to it, we mapped out the dimensions of bro-ness. Turns out it's a fairly nuanced landscape, but there's one celebrity who indisputably rules it all.

What is striking about all the offshore services available today is that while they are totally legal, the system seems to make it easy to get away with things that are not legal.

Drone strikes ordered by the Obama administration have killed more than a dozen al-Qaida leaders around the world. But when the ACLU asked for more information about the targeted killing, the CIA said it's a secret. Now the case is headed to federal appeals court.

Just moments after the earthquake struck Haiti, eyewitness accounts and photos of the devastation spread quickly on Twitter and Facebook. Cell phone carriers made it easy to text donations. And Google created a Haiti missing person's widget, which allows anyone in the world to search a database of missing people in Haiti. Robert Siegel talks to Omar Gallaga, who covers technology culture for the Austin American-Statesman, about technology and disaster.

Former Nixon administration attorney John Dean and a North Carolina divorce lawyer warn that if you think you have nothing to hide, think again.