Interesting aside - I've not started advertising yet, of course, but I just checked the goals in Analytics and we've had six conversions from the Register page and four conversions from the Browse page over the weekend (excluding my own dummy registration to check the process)!
Hmm. That can only mean that people are following the links in this thread and registering!
That's most welcome, but I must remember to create new pages/URLs to link to from the ads so as not to corrupt the results.
Funnily, total other registration over the weekend via landing on the homepage and navigating to the registration ---> Thank you page ... is only five! Just by having this thread we've had 10 more registration than we would normally have had?!