1. Trade magazines vs. online: research indicates that trade magazines are the first step on the information elevator Collection: Agricultural Communications Documentation Center (ACDC) Format: Journal article Publication Date: 1998-07 Published: USA Location: Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 140 Document Number: D05978 Journal Title: Marketing Tools Journal Title Details: 6(6) Notes: Online via Ebsco Host. 2 pages., Report on information sources used by engineering professionals and corporate executives in small and Fortune 500 companies.