Oddens' Bookmarks, The fascinating world of maps and mapping Created in 1995 by Roelof Oddens, a curator of the map library at Utrecht University, the Oddens Bookmark database now contains over 22,000 links about maps, cartography and GIS data. Users can search the resources by keyword, country, category, or by browsing through subject headings. Besides the abundance of maps and map data, visitors can find links to cartography departments, libraries, literature, and societies. Because the links span the entire world, this website is a great starting point for anyone interested in maps and mapping.