Attorney John Elwood talks to reporters Dec. 1 outside the Supreme Court building in Washington after arguing on behalf of Anthony Elonis, who was convicted in 2010 on the grounds of threatening his wife via social media. On Monday, the court ruled in favor of Elonis, saying prosecutors must prove that a social media threat was intentional, not just perceived. Jonathan Ernst/Reuters/Landov hide caption

itoggle caption Jonathan Ernst/Reuters/Landov

A Reddit mascot is shown at the company's headquarters in San Francisco. Reddit has published a new policy aimed at harassment on the site. Robert Galbraith/Reuters/Landov hide caption

itoggle caption Robert Galbraith/Reuters/Landov

Comedian Aziz Ansari became a pioneer of emoji language use in 2011, when he transcribed the hit Jay-Z and Kanye West song, "Ni**as In Paris." azizisbored.tumblr.com hide caption

itoggle caption azizisbored.tumblr.com

Purdue University students are testing new software that may track and warn about tornadoes, such as this one which struck Rochelle, Ill., in early April. Walker Ashley/AP hide caption

itoggle caption Walker Ashley/AP

Front Porch Forum co-founders Michael and Valerie Wood-Lewis run the company from their home office in Burlington, Vt. Angela Evancie/Vermont Public Radio hide caption

itoggle caption Angela Evancie/Vermont Public Radio

Arianna Huffington, president and editor-in-chief of The Huffington Post Media Group, speaks at the 2014 World Economic Forum. Reporters and editors in 15 countries will contribute to "What Works," her site's new initiative focused on covering positive news. Ruben Sprich/Reuters/Landov hide caption

itoggle caption Ruben Sprich/Reuters/Landov

Zarine Khan (right) and Shafi Khan, parents of Mohammed Hamzah Khan, speak to reporters in Chicago Oct. 9 after a federal hearing for their 19-year-old son, accused of trying to join Islamic State militants in Syria. Charles Rex Arbogast/AP hide caption

itoggle caption Charles Rex Arbogast/AP

Social media provides voice to movements and helps drive them. Picking the right platforms for these sensitive conversations, though, is a sign of our growing digital sophistication. iStockphoto hide caption

itoggle caption iStockphoto

This Nov. 19 screenshot shows the cover photo of an unofficial Marine group on Facebook called Just the Tip, of the Spear. The group and those like it have been accused of promoting sexism and of acting as a forum for hate speech. Just the Tip, of the Spear - 21/Facebook hide caption

itoggle caption Just the Tip, of the Spear - 21/Facebook

Photos from Liz Paul's blog entries on Prior Fat Girl. The blog chronicles women's weight loss journeys. Courtesy of Liz Paul/PriorFatGirl.com hide caption

itoggle caption Courtesy of Liz Paul/PriorFatGirl.com

Dana Bolger, who says she was raped in 2011 while a student at Amherst College, co-founded a group that seeks to educate students about their rights under Title IX. Jennifer Ludden/NPR hide caption

itoggle caption Jennifer Ludden/NPR