The audience for newspaper Web sites is growing at a faster rate than the overall online audience, according to recent research from the Newspaper Association of America (NAA).

The study, conducted by Nielsen/NetRatings, found that an average of more than 59 million people per month visited newspaper Web sites in the first quarter, a 5.3% increase over a year ago, while the overall online audience grew 2.7%.

NAA president and CEO John Sturm attributed the results to the industry's investment in digital ...