It's an Ad, Ad, Ad, Ad World X
The John W. Hartman Center for Sales, Advertising, and Marketing History at Duke University has developed a searchable online archive of more than 7,000 ads published in North American newspapers and magazines between 1911 and 1955. The collection, dubbed Ad*Access, concentrates on advertisements related to radio, television, transportation, beauty and hygiene, and World War II. Researchers can browse the collection by category and subcategory, as well as search for ads featuring specific keywords or images. The center also provides parallel histories of the categories, including a timeline of world events, to create stronger context for the collection.

Thanks to Weblogsky.