If you have Liverpool ancestors, especially if they were Roman Catholic, Liverpool History Projects is a site you'll want to visit and watch as it develops.
As the site explains:
This site has been set up by a group of regular users of Liverpool Record Office. Over the years and decades we have accumulated between us a small mountain of paper, including many transcripts, extracts, indexes, databases and finding aids that we intend to upload to this site in the hope that they will be of use to genealogists, family historians and anyone interested in the history of Liverpool. This will be an on-going process and much of the data is currently being made ready for upload so please keep checking back for new additions.
A lot of the information is free, some is indexes with a modest change for more detail.