August 19, 2010 5:40 am School District Tells Students and Teachers Not to Become Facebook Friends Florida‘s Lee County School District has issued new guidelines for employees using social networking sites like Twitter and Facebook. US & World Videos 2:42 Tech companies now using AI to help boost housing market 1:34 Artificial intelligence used to avoid blackouts 1:25 Bay Area high school seniors honored with Dave Goldberg Scholarship 0:26 Kaiser Permanente data breach may have affected millions 3:29 Watch: Why the pay gap for women in tech hasn't budged
