JournalsJournals in Cartography, GIS, and Geovisualization with impact factors and recent articles.
Literature ResearchBibliographia Cartographica – Bibliographic database with records since 1989.
Esri GIS Bibliography
Human-Computer Interaction HCI bibliography
John Snyder's map projection bibliography
Map labeling bibliography
Relief shading bibliography
TimeBliography – Space and Time in GIS
Library of Congress
Web of Science (subscription based)
CiteSeer, Google Scholar, Microsoft Academic Search