A Pew survey finds 70 percent of Americans have broadband at home. They tend to be better educated, better paid and younger than those who don't. Only 3 percent of Americans, Pew found, have dial-up service.

One finding that may be of interest to publishers: 10 percent of people said they have a smartphone but don't have broadband at home. "[A]nother way to say this is that 32% of non-broadband users own a smartphone," Pew's report says. Such phones "do offer a potential source of online access to individuals who might otherwise lack the ability to go online at all from within the home, even if that access is somewhat limited in comparison."

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