The Crowdsourced Maps Guiding Puerto Rico's Recovery Ifeadi C. 05:10 Feed: All Latest, Zero Tech Blog Volunteers across the globe are filling in maps of Puerto Rico. How do humanitarian workers use them? via Zero Tech Blog Share this Share on FacebookTweet on TwitterPlus on Google+ Related PostsFuture iPhones Could Look More Like Google's PixelWalmart has a great Keurig single-serve coffeemaker on sale for $40 offVolvo Polestar 2 is the first car to include Google's native dashboardIn wild exchange, Michael Cohen says Trump asked him to threaten people 'probably' 500 timesLove bread more than Oprah? Save $24 on this Hamilton Beach bread machine that's on sale at Walmart.The Razer Blade Stealth is like a MacBook and gaming laptop combined, and is on sale for $500 off