OER Knowledge CloudConference Proceedings20112011/03Metzer, JacquesHanna, AmalWikibooksOSSOERmotivationAssociation for the Advancement of Computing in Education (AACE)120111630-1638978-1-880094-85-3Volunteers contribute their efforts and time into organizations for different reasons and goals. These goals include strengthening their experience, developing networks, and enhancing their feelings. Similarly, programmers to Open Source Software (OSS) contribute programming to experience programming, develop their career future, and make software freely available for users. The rapid increase in contributing learning materials to Open Educational Resources (OERs) raised the question of what are the possible reasons that inspire OER contributors to write to open learning repositories. A web-based survey was published on Wikibooks website to assess the different the reasons for contribution to OERs. After applying the factor analysis on the sample (N=145), four reasons of contribution to OERs were emerged. These results were discussed in relation to Volunteer Functions Inventory (VFI) and motivation to open source/content.yeshttp://www.editlib.org/p/37379/http://www.editlib.org/p/37379/