The technology news enterprise package for this week through Dec. 26. Comments or questions to John Simons, jsimons(at)ap.org, or 212-621-7325. Questions about photos at 212-621-1900. For questions about graphics, call 212-621-1900. Repeats of stories are available from http://apexchange.com or the Service Desk, 1-800-838-4616. Eds: May be updated. SCHOOL SHOOTING-VIDEO GAMES WASHINGTON â¿¿ In the days since the massacre at Sandy Hook Elementary School in Newtown, Conn., a shell-shocked nation has looked for reasons. The list of culprits include easy access to guns, a strained mental-health system and the "culture of violence" â¿¿ the entertainment industry's embrace of violence in movies, TV shows and, especially, video games. By Lou Kesten. Eds: Sent Wednesday for use any time. AP photo HOLIDAY SHOPPING-SOCIAL MEDIA NEW YORK â¿¿ Facebook isn't just for goofy pictures and silly chatter. Whether shoppers know it or not, their actions online are helping dictate what pops up in stores this holiday season. After polling fans on the social media site, Macy's decided to carry denim jeans in bright neon hues rather than pastels. Wal-Mart for the first time is letting customers vote on which toys they want discounted. And to better plan orders for the next holiday season, a small business owner in Mississippi is running a contest encouraging customers to chime in about how they're decorating their homes this winter. By Business Writer Candice Choi. Eds: Sent Tuesday for use any time. AP Photos ETHIOPIA-TABLETS AS TEACHERS WENCHI, Ethiopia â¿¿ The kids wear filthy, ragged clothes. They sleep beside cows and sheep in huts made of sticks and mud. They don't go to school. Yet they all can chant the English alphabet, and some can make words. The key to their success: 20 tablet computers dropped off in their Ethiopian village in February by One Laptop Per Child, a U.S. organization that believes cheap, simple computing power can educate the world's neediest children. "The kids have already learned more than they would have in one year of kindergarten," said Matt Keller, who runs the Ethiopia program. By Jason Straziuso.