Personally I would suggest you get along to a local "Munch" where you can meet others who have an interest in BDSM.
The munch is there for exactly the reasons you need, to meet others, to chat and discuss BDSM stuff. They are for anyone with an interest in BDSM from experieced people to newcommers.
I'd certainly recommend getting along to one, you be able to chat about what you are looking for and get some ideas on what you need to do. You'd probably get more info from these than you ever will from reading books.
Just had a quick look, your nearest meetings ...
The munch is held from 7.30pm, on the first Tuesday of each month at:
The Mill on the Exe
Bonhay Road, Exeter, Devon,
EX4 3AB
Hope that helps