There are a lot of brilliant websites that may be relevant to your studies, but there are also many that are not, so it is essential to evaluate the material carefully to decide whether they are scholarly enough. Here are some recommended sites:

The Prosopography of Anglo Saxon England (PASE) aims to provide a searchable database of all recorded people living in early medieval England;
The Language of Landscape (LangScape) project is a comprehensive, searchable corpus of Anglo-Saxon boundary clauses – surveys drawn up by those who lived in, owned or worked the land, and who described it in their own words;
The Electronic Sawyer (eSawyer) is a revised online edition of Peter Sawyer’s seminal 1968 catalogue of all extant Anglo-Saxon charters;
The Anglo-Saxon Charters (ASChart) project was a 6 month British Academy pilot project to develop a rich XML encoding model to represent the diplomatic discourse within Anglo-Saxon Charters.

British Library Digitized Manuscripts – includes Beowulf, Chaucer and the St Cuthbert Gospel.

Caxton’s Chaucer – digitized copies of the 1476 and 1483 editions of The Canterbury Tales.

CIRCLE: A Calendar of Irish Chancery Letters c. 1244-1509 – 20,000 Irish chancery letters translated from Latin in to English.

DEEP – Database of Early English Playbooks published in England, Scotland and Ireland from the beginning of printing through to 1660

Domesday Book – Search by town or postcode

Early English Books Online Text Creation Partnership – 25,000 texts. Includes works by Erasmus, Shakespeare, King James I, Marlowe, Galileo, Caxton, Chaucer, Malory, Boyle, Newton, Locke, More, Milton, Spenser, Bacon, Donne, Hobbes, Purcell, Behn, and Defoe.

Early Modern Resources – research portal for the early modern period which includes some primary sources c.1500-1800.

Eighteenth Century Collection Online Text Creation Partnership – George Abbott through to Mrs Wright.

Eighteenth-Century Poetry Archive – George Crabbe, Elizabeth Carter, William Cowper, Henry Fielding, Fulke Greville and many more.

English Broadside Ballad Archive – Hosted by the University of California. Nearly 8,000 ballads.

EuroDocs: Primary Historical Documents from Western Europe – provides links to many documents that are transcribed, reproduced in facsimile, or translated on the Web.

Folger LUNA Database – digital images of manuscripts and book bindings.

Henry III Fine Rolls Project – A window into English history 1216-1272

Institute of Historical Research – at the School of Advanced Study, University of London provides information, publications and links to Web resources on all aspects of research in the field of History. Includes a database of theses.

Internet Medieval Sourcebook – hosted by the Fordham University Center for Medieval Studies.

Latin Palaeography Tutorial – produced by the National Archive.

Manuscrits Medievaux – 800 Medieval manuscripts from France and England between 700 and 1200.

Medieval Archaeology – The Society for Medieval Archaeology’s journal Medieval Archaeology is available online from 1957-2006, the more recent issues are available via Library Search.

Medieval Libraries of Great Britain – brings together two research tools for medieval libraries: Neil Ker’s Medieval Libraries of Great Britain and the Corpus of British Medieval Library Catalogues.

MEMSLib – Student-led project at the University of Kent which seeks to identify and collate resources relting to manuscript studies, language, literature, art, theology, drama and history in the early and late Medieval periods.

People of Medieval Scotland – A database of all known people of Scotland during 1093 – 1314.

Shakespeare Quartos Archive – Digital collection of pre-1642 editions of William Shakespeare’s plays.

The Labyrinth – Resources for Medieval Studies.

Library Guide - Medieval and Early Modern Studies