It's been pointed out to me that some of the older documents on this site give email addresses which are no longer valid. If anyone has been trying to contact me and run into this problem, the best address for most purposes is
forgottenfutures [at] ntlworld [dot] com
make the obvious substitutions to contact me.
You'll see another address if you pay for registration via PayPal - for various reasons I prefer an address that isn't tied to my ISP for that, please don't worry about it.