Targeting Hispanics in advertising is a trillion-dollar business. But it's more nuanced than it used to be. Generatiions differ in their responses, according to a report from Yahoo/Mindshare, Ethnicity in the Digital Age: Marketing to Hispanics. First-gen Hispanics are more likely to look for news content that speaks to their ethnicity and try brands that target them ethnically. Second- and third-generation are less likely to be swayed by ethnic marketing, but avoiding stereotypes in ads is important to all.