The American Community Survey (ACS) helps local officials, community leaders, and businesses understand the changes taking place in their communities.
Demographic Yearbook Online
Source for extensive, current international demographic statistics.
Gallup Poll Data
Provides summaries of recent polls on public affairs.
MPAA Research & Reports
Provides theatrical market statistics and other scholarly information
Pew Research Center
The Project for Excellence in Journalism has expanded to include more information.
Occupational Outlook Handbook
Assess the qualifications and outlook for various professions.
Radio Advertising Bureau
The RAB provides an extensive selection of “Radio Research Reports”. Free registration may be required to view some documents.
Technorati
Tracks blogging including top blogs. Also publishes a State of the Blogosphere report each year.
Television Advertising Bureau
The Research Central portion of this site contains weekly television program ratings and national ratings reports by specific demographics. Most data is for the current year; some data goes back to 2003. Some information is members-only.