Searchable collection of ads that have run on Facebook. For political and issues ads, you can see items that are no longer active on Facebook, search by country, and filter results by advertiser.

The successor to the Wisconsin Advertising Project, this project tracks and analyzes advertising in federal and state elections since 2010.

Data on over 1 million campaign ads aired for the 1998 through 2008 elections.

Presidential campaign commercials, 1952-2016.

Project by Internet Archive to capture all political advertising during 2016 campaign in 20+ states.

Printed ephemeral campaign materials for the Los Angeles area for the past 100 years, collected by UCLA.

"... contains filings submitted to the Federal Communications Commission by broadcasters around the country. Most radio, TV, satellite and cable providers are required to submit a "political file" to the FCC. The documents they contain allow the public to track each station's contracts, correspondence and other filings as they pertain to the candidates, super PACs, dark money groups and other organizations running political and issue ads."

Directory to campaign ads in the last couple of decades, particularly California.

"Largest and most comprehensive political advertising collection in the world." Over 90,000 commercials back to 1930s. While these are not digitized, you can request to borrow a small number of ads.