I have added the Google Friend Connect 'membership' gadget to the site. This doesn't actually let people join the site (you can do that by registering, if you convince me you are human, interesting/ed and not a spam bot!) but it does allow you to use an existing Google, Yahoo etc. ID to register your interest in the site and also to use various platforms you might be signed up to, to share it with your friends (or maybe people you really, really hate :-))
First of all, Hi to those of you who have used Friend Connect over there on the right. Lovely to see you Ross, pleased to meet you David, and thanks Karsten (you were on my 'guess' list, it has to be said!).