Not sure if it was Ebony Magazine, but over the holidays someone launched a Tumblr with vintage covers, editorial shots and even a few old ads from the magazine. (The Tumblr does have Johnson Publishing Company copyright information, but I haven't confirmed it's them.) Some good finds are below but check them out for yourself at ebonymag.tumblr.com.
"An aggravated Cosby. Bill Cosby, December 1980."
"The late Eunice Johnson, co-founder of EBONY with iconic designer Yves Saint Laurent."
"Mickey Ds gets serious. McDonald's ad, 1981."
"Frederick of Hollywood wigs...with a memory! Miracle Wigs ad, October 1970."