From the center's website, "The Pew Research Center is a nonpartisan 'fact tank' that provides information on the issues, attitudes and trends shaping America and the world."  This is an amazing resource for current statistics--especially those related to technology use.

Population overviews are a great place to start.  Then get a sense of the numbers by checking out sources of demographic data.

Most importantly, however, you need to learn about the experiences of the population group you're researching.  Ideally, you'll need to talk to members of the community, but you'll also need to consult the planning literature, including:

• Books
• Journal Articles
• Newspaper Articles
• Government Documents

Go to the library's Planner's Toolkit research guide for assistance with searching for any of these types of resources.