The 'History of Bath Research Group' are publishing digitised version of the Bath Directories. They have been working for the 4 years on this project and launched bathhistoricaldirectories.org.uk in November at one of their meetings, with a total of 15 of the 60 available directories completed. They are continuing to add directories as they are available.
The site is free to use and offers a wide range of search tools designed to get the most out of the entries, currently numbering just over a quarter of a million records.
It should make the job of researching Bath families from the 1846 to the late 1930s much easier, no longer needing a trip to the Bath Record Office and much quicker generally to find people and organisations. Take a look if you have research interests in Bath!