This site has information on which parishes are covered by the 2nd edition of the British Isles Vital Records Index available on CD-ROM. This index has details of over 10 million christenings and nearly 2 million marriages in England, Wales, Scotland and Ireland. There are also some transcriptions for a few English counties; mostly gazetteer entries plus the Return of Owners of Land for Oxfordshire 1873.
http://genoot.com/lib/index.html
This website indexes the names of people appearing in wills for Surrey and some other counties. Some of the wills have also been transcribed.
http://www.rootsweb.ancestry.com/~engsurry
Website for the town of Leighton-Linslade, formerly Leighton Buzzard in Bedfordshire and Linslade in Buckinghamshire, and surrounding villages. Includes transcriptions of census records, trade directories and more.
http://www.leighton-linslade.com/index.html