The identification of Gold Open Access with the payment of Article Processing Charges (APCs) is a widespread misunderstanding that has often led this alternative route for OA implementation to be dismissed as commercial publisher-friendly and prone to double dipping. However, Gold OA means publishing in any Open Access journal, and it's a well-known fact that over two thirds of the OA journals hosted in the DOAJ charge no APCs to their authors.This is the reason why when discussing the way the f...