Foundation Center website. The Foundation Center is the major source of information about philanthropy worldwide. It collects data, publishes reports, maintains online databases and provides analyses and training.
OpenSecrets (Center for Responsive Politics).
Provides information on organizations and special interest groups contributing to national and state politics.
GuideStar: The National Database of Nonprofit Organizations
Includes IRS Form 990.
Example: Boston Lyric Opera.
National Center for Charitable Statistics (NCCS): Urban Institute.
National clearinghouse of data on the nonprofit sector in the U.S. (Note 9/28/16: website can't open file for financials). Includes IRS Form 990. Register for more information.
Academic charts online : music data analysis (ACO)
“…database of international charting albums and singles under exclusive academic license from Billboard, Official Chart Company, IFPI, Media Control, ARIA and more. A single search allows you to interpret, graph, analyze, compare and contrast musical trends in place and time. Includes: Audio samples for each track and album; Links to key scholarly music journals, databases and other resources…”
Foundation Center. Research Studies: National Trends.
“Our funding trends reports provide the latest data available on every aspect of U.S. foundation philanthropy. Our team of research experts analyzes and interprets the data on foundations that we collect — providing a national data source unique for its scope, depth, and historical value.” Reports are available for download in PDF format. Examples of reports are Foundation Stats, National Trend Reports, Understanding and Benchmarking Foundation Payment, Key Facts on Corporate Foundations, Key Facts on Community Foundations, and many more.
National Archive of Data on Arts and Culture (NADAC).
“open-access research data on arts and culture in the United States. We provide data for use with statistical packages (SPSS, Stata, SAS, and R), for use with Excel, and for online analysis. Each dataset is accompanied by full documentation, such as codebooks, questionnaires, and user guides."