This paper offers an insight into the development. use and governance of e-repositories for learning and teaching. illustrated by Eric Raymond's bazaar and cathedral analogies and by a comparison of collection strategies that focus on content coverage or on the needs of users. It addresses in particular the processes that encourage and achieve community engagement. https://bookmarksaifi.com/story19588329/impact-of-the-digital-economy-on-the-development-of-economic-systems