WARC This link opens in a new windowWARC (formerly World Advertising Research Center) provides access to advertising and marketing information from various sources, including academic and trade journals, case studies, rankings, conference papers, and more. Users can find trends reports, news, and current data on media usage and ad spending. WARC provides access to several academic and trade journals including: Admap, International journal of advertising, International Journal of Market Research, Journal of Advertising Research, Journal of Advertising History, and Market Leader.