Who's who, what's what in tech today

January 27     FOLLOW US      NEWS SPORTS LIFE MONEY TECH TRAVEL OPINION WEATHER USATODAY.COM   TECH   TECH   Twitter debuts video, group messaging     The new features are designed to boost usage and reassure investors about growth prospects.     Read Story

TECH           Tech Five: Microsoft slides off earnings Company's earnings were down compared to same time last year.     TECH           'Try' singer Colbie Caillat is OK with Photoshop—really Singer's song Try about digital and physical manipulation went viral, with 37 million views on YouTube     TECH           Viewers like it live on new CBSN streaming TV channel Viewers like it live on new CBSN streaming TV channel   Advertisement   TECH           Facebook, Instagram sites back online Facebook and Instagram returned after a brief outage.     TECH           Microsoft profit dinged by Nokia, Windows The results reflect ongoing transition for Microsoft, from software power to cloud-based business.     TECH           Ready for snow-in: Sling TV starts Tuesday Sling TV looks to liven up streaming Net video party.     TECH           Musk debates science with Lisa Simpson Electric space craft aren't in the cards--Newton's Third Law of Motion.     GAMING           15 video games to watch in 2015 These are the video games to track this year.     MONEY           Digital trail led Silk Road probers to Ulbricht Trial shows suspected darknet mastermind made a computer mistake that aided investigators     The Day In Pictures Gallery A child dives into a canal in Samraong Kandal village on Jan. 26 outside Phnom Penh, Cambodia.     Popular Stories Mighty storm hammers Northeast; NYC 'dodges bullet' Hour by hour: Watch the #Blizzardof2015 unfold Stocks plunge as disappointing earnings spook markets