The collection of articles documents the history of: 1. 'Irregular Newsletter", the fore-runner of Ecoso that existed from 1967 to 1972; 2. 'Ecoso Exchange" (Series 1) newsletter that ran from 1972 to 1980; "Ecoso Exchange Newsletter" (Series 2) revival that went on from 1988 to 1995, and  4. “What next?” - Consideration on how best Ecoso can help further the objectives of the Crow Collection Association.