If you have established family lines back to the Medieval period then this website will interest you. Working with material as far back as the Middle Ages it is essential to have a good understanding of the social background of the records, the why, where and how of the records you are looking at.
This site states ….
The aim of the Medieval English Towns site is to provide historical information about cities and towns in England during the Middle Ages, with particular but not exclusive emphasis on medieval boroughs of East Anglia and on social, political and constitutional history. A growing selection of primary documents (translated into English) relevant to English urban history is included.