More than a third of tablet and smartphone users rely on their devices to consume daily news, but consumption habits vary significantly based on demographic factors, including age and gender, according to a new report from the Pew Research Center's Project for Excellence in Journalism. Among the findings: Males under 50 are more likely than females to check news sources multiple times a day, and young people are the most receptive to digital advertising -- with 25% of people under 29 clicking on ads, compared to just 7% of 50- to 64-year-olds.