A study released Monday (Nov. 8) of 54,000 American households shows that between 2001 and 2009, broadband Internet use rose sevenfold, from 9 percent to 64 percent. But “Exploring the Digital Nation: Home Broadband Internet Adoption in the United States” also reveals that significant gaps persist along racial, ethnic, and geographic lines, according to the National Telecommunications and Information Administration. Also, nearly a quarter of households did not use the Internet at home, with most of those respondents citing lack of need or interest. The report is here in PDF format. It was compiled by the NTIA and the Department of Commerce’s Economics and Statistics Administration.