“…Since the establishment of library consortia and the growth of big deals/major contracts, several studies have appeared in recent years in which the usage of e-journals was researched with respect to their cost-effectiveness, user diversity according to research fields, and other relevant factors (see for example Karasözen, Kaygusuz, Özen(Bati), Hacer, 2007;Tonta and Ünal, 2008;Gargiulo, 2003, Bevan, Dalton and Conyers 2005, Boukacem-Zeghmouri and Schöpfel, 2008.…”