Taxi companies have been vocal opponents of web-based "ride-share" services, which they say have an unfair advantage because they're playing by different rules.

Another $1.4 million in taxes and fees were collected from the sale of medical marijuana. This indicates that about $14 million worth of marijuana was sold during the first month of legalization.

World War I shook up the world in a dramatic way — and from that chaos emerged inventions, words and other things we still use today. Can you identify them all?

A Pew Study finds that the milliennial generation has a low level of social trust. There are several possible causes for this distrust, including a skewed social media culture and a faltering economy.

A high school hockey game in Ohio ended in surprise after seven periods of overtime, when officials called it a tie. Chris Irwin, the athletic director of one of the teams, explains the decision.

Hedge fund manager Bill Ackman first invested against Herbalife, then lobbied politicians to go after the company. Eric Lipton of The New York Times reported on the story, and he has more details.

Before Secretary of State John Kerry agrees to visit Russia, the State Department says it wants to see concrete evidence that Russia's ready for serious discussions on ending the crisis in Ukraine.

Former National Security Agency contractor Edward Snowden addressed the South by Southwest Interactive Festival, urging developers to build encryption systems to stifle government snooping.

Organizations are trying to find ways to get people with lower incomes to save more. One program urges families to set aside a part of their tax refunds so they have money for emergencies.

For an online community of crafty bakers, a cookie is more than just crumbly delights. They're taking cookie decorating to new heights of intricacy, from carnival carousels to beach-themed treats.

Virtual reality can make people feel like they are experiencing the world outside of their bodies. The sensation can make it hard for the people to remember what happened to them.

Ukraine gave up its nuclear weapons two decades ago when Russia and the U.S. pledged to respect its sovereignty. Amid the current crisis with Russia, some Ukrainians now say that was a mistake.

Cornell University President David Skorton has been named the Smithsonian's next secretary. Skorton, a cardiologist and amateur jazz musician, will be the first physician to lead the nation's attic.