I've just received a pre-release copy of London's Pirate Pioneers by Stephen Hebditch. It's 250 pages of well researched information about the London pirate radio scene. There will be things you already knew, and things you didn't! As you would expect from a station that had such a big influence there's a lot about Thameside Radio.
Go buy a copy. You won't regret it.
You can order it on Amazon here Did I mention there are photos too?