Perseus Atlas
- Map server gateway offering browsable maps of named places from the ancient world. Allows overlays of Roman provinces and modern boundaries, and comparisons against modern features and population centers.
- http://www.perseus.tufts.edu/cgi-bin/patlas

Classical Atlas Project
- The Barrington Atlas is a reference work of the ancient Greeks and Romans, the lands they penetrated, and the peoples and cultures they encountered in Europe, North Africa and Western Asia.
- http://www.unc.edu/depts/cl_atlas/

Ancient Atlas - About.com
- A collection of annotated links for online maps of the ancient world and from antiquity.
- http://ancienthistory.about.com/library/bl/bl_maps_index.htm

The Roman Empire
- The Roman Empire at its Greatest Extent
- http://www.acs.ucalgary.ca/~vandersp/Courses/maps/basicmap.html

Rome: Map Resources
- Maps of the Roman Empire
- http://www.dalton.org/groups/rome/RMAPS.html

Historic Atlas Resource - Europe
- Historical and Cultural Atlas Resource
- http://darkwing.uoregon.edu/~atlas/europe/maps.html

The Interactive Ancient Mediterranean Project
- "IAM: an on-line atlas of the ancient Mediterranean world ... "
- http://iam.classics.unc.edu/