Government transparency website. The site helps ordinary citizens find and track bills in the U.S. Congress and understand their representatives legislative record. Set up account and track committees, motions, and bills on topics of interest.
Financial data for over 1.5 million nonprofit organizations in the United States.
GuideStar offers financial data for over 1.5 million nonprofit organizations in the United States. Data includes revenue tables, expense tables, and balance sheets; organization overview (mission, audience, etc.); annual reports, lists of officers and other key personnel, and access to IRS 990 Forms (typically all available forms since 1997). Users can search this database by keyword and by information such as geographic location, type of nonprofit, IRS Subsection (501(c)3, etc.), and NTEE (National Taxonomy of Exempt Entities) codes.
A personal account with your @umich.edu email is required to download from Guidestar. Downloads are limited to 1,000 records per month.
Outside of the official federal government sites and databases, many organizations and institutions strive to archive and make the data more accessible. Basically, it's always a good to have a backup (especially with the current administration and political environment).