Original Texts On-Line

The Roman Law Library
Ius Romanum

Secondary Sites

Ancient Law (1861) - the seminal treatise by Henry Maine, still worth reading.

The Roman Constitution - Polybius' famous discussion of the constitution of Rome during the mid-republic.
Ancient Roman Law - summary of Roman public law, with a basic introduction to the various magistracies and assemblies.
The Roman Law Articles of Smith's Dictionary - useful collection of articles covering all aspects of Roman law in depth.
Legal Status of Women in the Roman World - useful collection of texts.
Ius Romanum - useful site from the University of Saarbrüken.
Roman Law Resources - comprehensive list of links and resources from the University of Aberdeen.