WARC (World Advertising Research Center) provides information relating to marketing, advertising, and mass communications. It includes thousands of global case studies, along with articles, opinion pieces and conference reports. It also provides comprehensive historic and forecast advertising expenditure data, together with global media cost data.
This resource replaces the now defunct American FactFinder. This is the U.S. Census Bureau's main vehicle for distributing U.S. census data, including economic censuses and surveys and annual population estimates. Population, housing, economic and geographic data can be found here.