The annual "Leading National Advertisers" issue from Advertising Age is now online, with added content from AdAge's Data Center. For the top 100 "LNA", media spending is listed. For large brands within a company (e.g., Chevrolet, Buick - within GM ; M&M's - within Mars), media spending is also listed.
The Library has acquired backfiles (as-is, newsstand versions) of some newspapers, general periodicals and business periodicals - ad content is searchable and viewable.
Business periodicals: Fortune (1930-2000)
Women's Magazine Archive - includes: Better Homes and Gardens(1922-2005) ; Cosmopolitan (1886-2005) ; Essence (1970-2005) ; Good Housekeeping (1885-2005) ; Ladies' Home Journal (1885-2005) ; Parents (1926-2005 - some gaps) ; Redbook (1903-2005 - some gaps) Seventeen (1944-2005) ; Town & Country (1846-2005 - some gaps) ; Woman's Day (1937-2005)