The National Archives - Check out the catalogue for anyone you are searching for – their online documents are particularly good valueThe British Library - An endless source of information – including the new online British Newspaper Archive. If you are visiting London, check out the library catalogue before you arrive for any out of print publications you want to seeBritish History online - You can discover lots of information about almost every aspect of your genealogy research, and if you register with the site there is even more detail available. Well worth joining!History of Parliament - a mine of informationHearth Tax online - On line transcriptions of Hearth Tax records for various counties (currently Durham, Kent, surrey, Westmorland, Yorks are available, Essex and London/Middx coming soon)Henry III Fine Rolls Project - 'a window into English History 1216-1272'Medieval English Genealogy - lots of information and resources to help when you get back beyond parish recordsCurious Fox - This quirky site can put you in touch with people looking for ancestors on a village by village basisIGI batch numbers - This list of links to extracted BMD entries for all parishes within county still works on the original version of IGI, but you have to cut and paste the links. Still a hugely useful site to point you to the extracted records on family search

Scotlands People - Excellent site – pay per view access to civil and parish records along with censuses and wills. The sheer amount of information held on Scottish BMD records makes it worth every penny.

Census of Ireland 1901 and 1911 - Brilliant and FREE coverage of the whole of Ireland in 1901 and 1911Irish genealogy websites - Long list of Irish sites compiled by the National Archives of IrelandIrish Genealogy - This FREE site gives you access to nearly 3 million pre 1900 church records (and is being updated all the time)

WESTMORLAND

Kirkby Stephen website This site includes transcriptions of Kirkby Stephen parish records and various other local records including links to various surname sites
CUMBRIA
Cumbria Manorial Records Explanations of what sort of information is contained in manorial records and how to interpret them – includes a link to the Manorial Documents Register on the National Archives site.
Cumberland and Westmorland Family History and Genealogy Wills, parish records, window tax, hearth tax, census and trade directory information along with photographs of important buildings and articles of interest. Well worth a visit.
DURHAM
Durham Records Online This pay-per-view site contains millions of parish records that have been transcribed by volunteers in great detail. It is constantly being updated, and also offers a matching service which puts you in touch with anyone else that views the same record that you have paid to view so that you can share information. It covers mainly Durham but also includes a few adjacent parishes in Northumberland and Yorkshire.
Tees Valley Indexes This initiative by the Registrars of the relevant Councils allows you to search for birth, marriage or death entries and order a certificate.
North East Inheritance database This site contains pre 1858 Durham probate records – and eventually the images of the wills included on this site will be viewable on the family search website.
YORKSHIRE
Cause Papers in the Diocesan courts of the Archbishopric of York 1300-1858
Searchable database of historical documents held at the Borthwick Institute
Sedbergh Parish Registers A copy of the printed transcript of the parish records from Archive.org
LANCASHIRE
The Lancashire online parish clerk One of the best of the On-line Parish Clerk sites – if your ancestors live in one the parishes that has been transcribed in detail your research will progress very quickly!
OXFORDSHIRE
Oxfordshire family history society transcribed wills If you have ancestors in Oxfordshire this site is worth checking out.
ESSEX
Essex Ancestors In my view, the very best county Records Office website. They have almost all of their parish records loaded up on the site in image format, along with wills, and various other records. You need to subscribe to access the images, but you can choose a range of periods to allow you to search for your ancestors.
LONDON
London Lives 1690-1800 A fully searchable edition of 240,000 manuscripts from eight archives and 15 datasets
CORNWALL
Cornwall Online Parish Clerks Another very useful source to parish records if you have ancestors in Cornwall.

Public Record Office Victoria  - research services for family and local history
Passenger lists, wills and probate, online indexes and more
New South Wales Registry of BMDs Civil records from 1856 as well as early curch records from 1788
Australian Anzacs in the Great War Its major activity is the construction of a database that draws on a wide range of sources to provide details on the 330,000 men and women who served overseas in the (First) Australian Imperial Force, 1914-1918. This site includes records of soldiers interred at Fromelles, who were identified through a DNA testing programme
Oz Gen online This site provides hundreds of links to Australian and worldwide genealogy sites
Australian cemeteries Transcribed records for all states in Australia – and very helpful people to contact if you can’t find what you are looking for.
Trove Access Australian books, images, historic newspapers, maps, music, archives and more

New Zealand historical records online Search and order copies of historical BMD certificates

Collections Canada  BMDs, census, immigration, military, land and employment records – much is free but some longer documents (e.g. service records) you can order