Taj Mahal is credited with helping popularize American blues over the course of his five-decade career. Jay Blakesberg/Courtesy of the artist hide caption

itoggle caption Jay Blakesberg/Courtesy of the artist

The Ouya game console and controller. Games are sold through something like an app store, allowing customers to sample them before buying. Courtesy of Ouya hide caption

itoggle caption Courtesy of Ouya

Blake Morgan's songs were played some 28,000 times over a 90-day period on Pandora, earning $1.62 in royalties. Jim Herrington/Courtesy of the artist hide caption

itoggle caption Jim Herrington/Courtesy of the artist

An Xbox 360 video presentation at the E3 Media and Business Summit in Los Angeles in 2008. Microsoft is scheduled to introduce its newest Xbox on Tuesday. Ric Francis/AP hide caption

itoggle caption Ric Francis/AP

Chris Yerga, engineering director for Android at Google Inc., speaks at the company's I/O Annual Developers Conference in San Francisco on Wednesday. David Paul Morris/Bloomberg via Getty Images hide caption

itoggle caption David Paul Morris/Bloomberg via Getty Images

YouTube is expected to announce a subscription service for special channels this week. Jeff Chiu/ASSOCIATED PRESS hide caption

itoggle caption Jeff Chiu/ASSOCIATED PRESS

Ester Gerston and Gloria Ruth Gordon, early programmers working on the ENIAC computer in 1946. U.S. Army hide caption

itoggle caption U.S. Army

Twitter co-founder Biz Stone is one of five celebrity directors taking part in a Canon-sponsored experiment called Project Imaginat10n. His short film, the inspiration for which was crowdsourced via the Internet and social media, focuses on familial loss and the process of grieving. Justin Sullivan/Getty Images hide caption

itoggle caption Justin Sullivan/Getty Images

BioShock Infinite revolves around an Aristotelian tragedy with tragic heroes, grounded in a floating city set in 1912. Courtesy of Irrational Games/2K Games hide caption

itoggle caption Courtesy of Irrational Games/2K Games

Egyptians use their mobile phones to record celebrations in Cairo's Tahrir Square, the epicenter of the popular revolt that drove Hosni Mubarak from power in 2011. Twitter was often used to record happenings during the Arab Spring. Mohammed Abed/AFP/Getty Images hide caption

itoggle caption Mohammed Abed/AFP/Getty Images

Festival attendees experiment with Leap Motion technology. Elise Hu/NPR hide caption

itoggle caption Elise Hu/NPR

Facebook CEO Mark Zuckerberg speaks at Facebook headquarters in Menlo Park, Calif., on Tuesday. Jeff Chiu/AP hide caption

itoggle caption Jeff Chiu/AP

Google's Executive Chairman Eric Schmidt (left) arrives at Pyongyang International Airport on Monday. There is speculation that Schmidt's presence in North Korea could have an upside for Google by positioning Schmidt as the company's global ambassador. David Guttenfelder/AP hide caption

itoggle caption David Guttenfelder/AP