Reader and top history ferret [Howmuch] sent a link at the weekend, which I’ve just been having a good look at. If you’re interested in resources like Kelly’s directory and other associated gazetteers – an example of which I posted previously – then this site is for you. Bear in mind that most of the source .pdf files are in the public domain, yet are sold on disk by eBay traders, often for a tenner or more apiece. You’ll need Adobe reader to get the best from the site and a reasonable t’internet connection, but that’s all. Get rooting and see what you can find.