This document lists and describes several large network dataset collections for research purposes. It includes social networks, communication networks, citation networks, collaboration networks, web graphs, product networks, road networks, and more. Sources provided include the Stanford Large Network Dataset Collection, a Twitter dataset, leaked Facebook pages, UCIrvine Datasets, and additional results. The datasets cover a wide range of network types and can be used to study interactions in online social networks, information cascades, and networked communities.