Accademia della Danza - SCA dance group based in Massachusetts. Basingstoke Early Dance - Social dances from between 1450 and 1650. Information about classes, and upcoming performances under their stage name - Renaissance Footnotes. Capriol Society for Early Dance - Based in Cambridge, England. Mainly concerned with 14th-17th century dancing from the European courts.
Site includes some background, and information about classes.
Danserey - Dance and music group from Landshut, Germany. Includes photographs, and information about upcoming dances and presentations. An introduction and transcription. Joy and Jealousy - Information about a book on 15th century Italian balli by Vivian Stephens and Monica Cellio. Includes a link to the text and music.