I post about the London Topographical Society about once a year, when I get their newsletter with details their AGM. AGMs can be grim, but not theirs. They are held in various interesting buildings, and are then members can pick up their annual publication - this year "The A-Z of Charles II's London, London actually Survey'd by William Morgan", which will be a facsimile of the original publication. Thanks to my LTS membership I have a similar Edwardian A-Z, and worth endless pouring over. The contributors are distinguished local historians, working as volunteers, and the publications are great value for the annual membership of £20.

And honestly, I'm not on a commission to drum up membership for the LTS.