We performed a literature search and identified other model repositories similar in some degree to the MREP. Specifically, we sought applications that maintained a database where models (model code, data inputs, and outputs) were shared by users in a controlled environment (i.e., an environment that connects model components). We identified a number of existing relevant model repositories and we contrast five of those that catalog and share information about a specific set of models and model runs. A number of online archives and/or data repositories from a number of nonmodeling applications were also identified.