This study examines resources from 110 repositories. It should be clear that this post doesn't measure actual reuse, it measures only how suitable the resources are for reuse. Having said that, there are some issues with how the observations are presented (for example, licensing is divided between CC-by-NC-SA (42.4%) and "Any of the 6 CC licenses (27.1%)", which is an impossibility). But there are some interesting things. For one, there is a preponderance of NC licenses (contrary to some OER advocates' claims to the contrary). The private sector is almost completely absent from OER production. Most repositories use Dublic Core metadata, and not (say) Learning Object metadata (LOM). Educational metadata was almost never used. Resources were rarely updated. There were few external quality assessments. The authors conclude, interestingly, "current ROERs include more drivers that promote the reuse of OERs, mainly through open licenses and social networks, than features facilitating the retrieval and use of OERs according to educational needs, such as learning goals."
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