Customer review websites like Yelp have exploded in the last few years, but are negative reviewers at risk of inciting the litigious wrath of angry business owners? Richard Vogel/AP hide caption

itoggle caption Richard Vogel/AP

Cameron Harris, who has had Type 1 diabetes since he was 8 years old, explains the ins and outs of using glucagon for blood sugar lows. Harris hosts a video podcast series called "In Range" on YouTube. Harwood Podcast Network/YouTube hide caption

itoggle caption Harwood Podcast Network/YouTube

A screenshot of an anti-Obama text message received Tuesday evening. NPR hide caption

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President Obama and GOP presidential nominee Mitt Romney walk away after they greet each other at the end of the third presidential debate in Boca Raton, Fla., on Monday. Saul Loeb/AFP/Getty Images hide caption

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Republican presidential nominee Mitt Romney and President Obama spar over energy policy during the second presidential debate at Hofstra University on Tuesday. Charlie Neibergall/AP hide caption

itoggle caption Charlie Neibergall/AP

Does he need to watch what he likes? Facebook's logo is reflected in the glasses of a student in Manila. Ted Aljibe /AFP/Getty Images hide caption

itoggle caption Ted Aljibe /AFP/Getty Images

President Obama is lifted off the ground by Scott Van Duzer, owner of Big Apple Pizza and Pasta Italian Restaurant, during an unannounced stop Sunday in Fort Pierce, Fla. Pablo Martinez Monsivais/AP hide caption

itoggle caption Pablo Martinez Monsivais/AP

Nearly everyone has a smartphone or tablet these days, but what should you do when it comes time to sit down for dinner? Sean Locke/iStockphoto.com hide caption

itoggle caption Sean Locke/iStockphoto.com

Katherine Leon says she spends up to 12 hours a day online interacting with others who share her rare heart condition. Emily Bogle/NPR hide caption

itoggle caption Emily Bogle/NPR