It would be good if they said up front which parishes in which counties are available to search, then at least if the parish your hoping for isn't there you can leave the search engine clear for the lucky ones!!
Click on the link "counties and parishes"
you get a list of county links, which takes you to a table of parishes, complete with coverage.
This is meant mainly for people thinking of transcribing, but it makes a good guide for "users" as well.
Most parishes are "in progress" but click on
Somerset to see an example of what's available.
Also useful: The place/town names are links to a GENUKI page on that place/town
