Subject gateways provide access to a range online resources. Those listed below are relevant to History.
AHDS - History
Forming part of the Arts and Humanities Data Service, this service aims to acquire and make available computer-readable data covering all time periods up to 1945 that have been created using documentary sources
British Cabinet Papers
Comprehensive access to Cabinet papers from 1915-1977.
British History Online
A digital library containing some of the core printed primary and secondary sources for the medieval and modern history of the British Isles.
Chinese Memory Project
Major collection of digitised Chinese texts and documents (NB In Chinese)
Starting in March 2011, a search facility for a wide range of distributed digital resources relating to early modern and nineteenth-century British history.
Early Modern Resources
Online resources on a variety of themes and regions.
EGO - European History Online
EGO crosses national, disciplinary and methodological boundaries to cover 500
years of modern European history.
An extensive European-wide gateway to archive, library and museum collections.
Extensive range of 1.3 million documents, including digitised manuscripts, e-books, images, journal articles and sound recordings from the Bibliotheque Nationale, dating from the middle ages to the 19th century. More than a third of items are full-text searchable and new material is added frequently.
This is of most use to you for “Limited Preview” books. You can access it directly, or use Google Scholar as a common front end to journal articles, reviews, books, etc. See Howell Harris's detailed online guide http://www.dur.ac.uk/h.j.harris/GoogleBooks.doc
Parliamentary debates from 1803 to present available to browse or search.
Historical Text Archive
Collections of both primary and secondary material, largely arranged by country
The Institute of Historical Research guide to online resources for historians, Royal Historical Society bibliographies, theses, news of conferences, etc.
History resources on the web
History of the United Kingdom - primary documents
Links to texts (some editions and translations, some facsimiles of mss) of useful range of key documents
Internet History Sourcebooks Project
Well organised route to some of the wealth of full-text historical primary sources available on the Web
Online resources for medievalists
National Archives (U.K.)
Incorporates the previously separate web sites for the Historical Manuscripts Commission and the Public Record Office. The "Search our Collections" menu gives access to the former P.R.O. catalogues, while "Search Other Archives" includes the indexes of the National Register of Archives, and ARCHON, the UK archival gateway
National Coal Mining Museum for England - Library
Includes many valuable historical items and primary resources such as runs of important journals such as Colliery Guardian and Mining Journal, along with statistics, social history, legislation and mine technology.
Online reference book for medieval studies
Exceptional collection of titles, many of which the library does not have in hard copy.
Pre-1707 Scottish parliaments
Records of the Parliaments of Scotland from 1235 to 1707.
The official record of parliamentary debates in the devolved government of Northern Ireland, from June 7 1921 to the dissolution of Parliament in March 28 1972. It documents parliamentary discussion on a wide range of issues including industry, agriculture, transport developments and much more. Key events, including the aftermath of Blood Sunday, the 1949 budget and the throwing of the mace, are included.
United States National Archives and Records Administration
Access to 11 million digitised US government records.
WWW Virtual Library - History - Central Catalogue
Based at the European University Institute in Florence, this highly developed guide is well arranged by subject categories, which at the top menu level are a mixture of areas (e.g. France, Early modern history) and themes (e.g. Urban history, Women's history). A section of the WWW Virtual Library network.
From the National Archives
Beginners' Medieval Latin
From the National Archives - no prior knowledge of Latin is necessary.
English Handwriting 1500-1700
From Cambridge University.
The Internet for History is a tutorial specifically designed to help you get the most from the internet.