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This site presents data on the population of the city proper according to its administrative boundaries and on the urban agglomeration (comprising the city proper plus its contiguous built-up areas). Since population census years differ among countries and areas, the reference years for the city populations vary.

This U.S. Census Bureau site is the entry point to the 2000 Census data as well as more current American Community survey data, economic statistics, and geographic and map products. It includes links to the “American FactFinder and to “Quick Facts” summary profiles for places, counties, and states.

Related: See also American Factfinder.

Coverage: Links to the Decennial Supplementary Surveys, the 1990 census, and selected historical data from 1790-1990.
Tags: Census, Government

This site provides digital boundary definitions for every U.S. Congressional District in use between 1789 and 2012.

A collective database of all books published in Europe between the invention of printing and the end of the sixteenth century (1450-1700).

This database includes the most recent available payroll data for employees of the State of California, the University of California, and the California State University.

Coverage: 2007-present
Tags: California, Government, Salaries, University Of California

As part of its commitment to transparency and public accountability, each year the University of California publicly reports employee pay data. The report covers UC’s more than 185,000 career faculty and staff employees, as well as part-time, temporary and student employees.

Coverage: 2010-present
Tags: California, Government, Salaries, University Of California

This website provides public access to detailed data on UC students, finance, faculty and staff.

This website provides public access to detailed data on UC students, finance, faculty and staff.

This is an online collection of 19th and early 20th century photographs of the Mississippi Valley along the Iowa/Illinois border. They are selected from the collections of several libraries, museums and colleges in the area.


UpToDate is a point-of-care clinical medicine database, providing coverage of over 8500 topics in 17 medical specialties. UpToDate integrates drug information (Lexi-Comp) and clinical images (Visual Dx).

The Urban Dictionary claims “3,446,841 definitions written since 1999”. This wiki-style slang / profanity dictionary utilizes open contributions to capture contemporary prospectives on the unofficial vocabulary or phraseology of the “street”. It is useful for those looking to read multiple interpretations on controversial terms.

Access current and cumulative U.S. export and import data for over 9,000 export commodities and 17,000 import commodities. USA Trade Online provides trade statistics using the Harmonized System (HS) up to the 10-digit level and the North American Industry Classification System (NAICS) commodity classification codes up to the 6-digit level. Data for many series goes back to 1992.