The first five categories contain sites with research-based information that is evaluated by a team of child development graduate students. This category, which does not involve research-based information, was added at the request of parents. They offer a search engine that searches every word of every U.S. government document. They also feature a topical index, links to state and local governement and other tools. QuickFacts offers summary profiles showing frequently requested data items from various Census Bureau programs.
Profiles are available at the national, state, and county level.