- General Ancient Coin Sites
- Forum Ancient Coins
- ERIC (Encyclopedia of Roman Imperial Coins) from Forum Ancient Coins
- ERIC (downloadable PDF from dirtyoldcoins.com)
- Dirty Old Coins: includes ERIC I, II and posters of Roman and Byzantine rulers
- Doug Smith
- Numista
- Ancient Coins for Education
- Corpus Nummorum Online is an open access numismatic web portal that aims to collect and present comprehensive regional datasets of Greek and Roman provincial coinage
- Ancient Coin Guides