Bodleian Library: Broadside Ballads Project
Some images of ballads from the early 1700s.
Legends - Shake Loose the Border
Brief overview, with information on online and offline material.
Sixteenth Century Ballads
Transcriptions, music and bibliography.
The Oxford Book of Ballads
176 selections by the anthologist Arthur Quiller-Couch. Indexed by title and first line.
The Traditional Ballad Index
Annotated bibliography of folk songs.