"The American Community Survey (ACS) is an ongoing survey that provides data every year -- giving communities the current information they need to plan investments and services. Information from the survey generates data that help determine how more than $400 billion in federal and state funds are distributed each year."
An annual series that provides sub-national economic data by industry. Useful for studying the economic activity of small areas; analyzing economic changes over time; analyzing market potential; setting sales quotas; and developing budgets.
"The official source for U.S. export and import statistics and responsible for issuing regulations governing the reporting of all export shipments from the United States. If you're searching for import or export statistics, information on export regulations, commodity classifications, or a host of other trade related topics, this is the place to get the information you need."
"Social Explorer is an online research tool designed to provide quick and easy access to current and historical census data and demographic information. The easy-to-use web interface lets users create maps and reports to better illustrate, analyze and understand demography and social change." NOTE: this is a commercial, not a government website.