Atos CEO Thierry Breton caught a lot of flak last year when he announced he wanted his employees to give up email, but he may have been on to something. Kids these days don't use email -- digital market research company comScore found that use of Web-based email dropped 31 percent among 12- to 17-year-olds and 34 percent among 18- to 24-year-olds in the period between December 2010 and December 2011.