"SnowGlobe is a program that assists with literature searching, using a technique called snowballing. Snowballing has emerged as the gold standard for comprehensive literature reviews. The process of snowballing takes all known relevant papers and searches through their references (which papers they cite) and citations (which papers cite them). Doing this by hand is an extremely time-consuming process, and until now, there was no way to do this process in bulk. SnowGlobe has several time-saving features such as automatic duplicate removal, as well as the ability to track which titles you have already screened so you don't have to screen them multiple times."

Statistics and data resources by subject. Research guide from the Northwestern University Libraries (NUL).

Northwestern University databases with statistics and data.

Detailed research guide on US Census data

A government resource that federates data from hundreds of sources, including federal government, cities, counties, states, and universities.

Find data about the U.S., such as maps and population, demographic, and economic data.

MetaLib is a federated search engine that searches multiple U.S. Federal government databases, retrieving reports, articles, and citations while providing direct links to selected resources available online. To learn more, view additional brief or detailed search information.

Federal court management and judicial caseload statistics

Contains data on civil case and criminal defendant filings and terminations in the district courts, along with bankruptcy court and appellate court case information

The United States' primary source for criminal justice statistics. Contains data on crime, criminal offenders, victims of crime, and the operation of justice systems at all levels of government.

Includes four annual publications, Crime in the United States, National Incident-Based Reporting System, Law Enforcement Officers Killed and Assaulted, and Hate Crime Statistics are produced from data received from over 18,000 city, university/college, county, state, tribal, and federal law enforcement agencies voluntarily participating in the program.
Also includes information on the Law Enforcement Officers Killed and Assaulted (LEOKA) Program and the Hate Crime Statistics Program, as well as the traditional Summary Reporting System (SRS) and the National Incident-Based Reporting System (NIBRS).

A joint project of the National Center for State Courts (NCSC) and the Conference of State Court Administrators (COSCA), this database contains caseload data from the courts of the fifty states, the District of Columbia, and Puerto Rico.

Contains statistics from the Economic Census conducted every five years by the U.S. Census Bureau. Find information on retail, service and manufacturing. Tip: Click on Business and Government link on the left side of the home page.

FRED (Federal Reserve Economic Data) is a database of a database of over 100,000 U.S. economic data time series from 59 national, international, public, & private sources. FRED is maintained by Research Department at the Federal Reserve Bank of St. Louis

The Annual Survey of Manufactures (ASM) from the Census Bureau is for all manufacturing establishments with one or more paid employee. Among the statistics included in this survey: employment, payroll, value added by manufacture, cost of materials consumed, value of shipments, detailed capital expenditures, supplemental labor costs, fuels and electric energy used, and inventories by stage of fabrication.