BlueJay, a tool by social media monitoring company BrightPlanet, shows the locations of tweeters who have left their geotagging option activated. BlueJay screenshot hide caption

itoggle caption BlueJay screenshot

Protesters line up outside City Hall in Oakland, Calif., to demonstrate against the Domain Awareness Center, a data integration system being built by the city and the Port of Oakland. Martin Kaste/NPR hide caption

itoggle caption Martin Kaste/NPR

Partiers celebrate marijuana legalization in Washington state at a pot party in Seattle earlier this month. Elaine Thompson/AP hide caption

itoggle caption Elaine Thompson/AP

Washington is the second state to adopt rules for the recreational sale of marijuana. Some entrepreneurs see state-licensed pot as a golden ticket, but other growers aren't sure applying for a license makes good business sense. Ted S. Warren/AP hide caption

itoggle caption Ted S. Warren/AP

A lineman grounds a line on a replacement pole in McNeill, Miss., after 2012 Christmas day storms downed both telephone and electric power lines and poles throughout the state. Upkeep on traditional landlines is expensive, and some are pushing for relaxing requirements that phone companies maintain these lines. Rogelio V. Solis/AP hide caption

itoggle caption Rogelio V. Solis/AP

In Washington state, dogs don't need to sniff out pot anymore, but troopers are keeping an eye out for high drivers. Matthew Staver/Bloomberg via Getty Images hide caption

itoggle caption Matthew Staver/Bloomberg via Getty Images