I read this front to back on the weekend:
Dirty Money - http://www.amazon.co.uk/Dirty-Money-...dp/1780742584/

Some really interesting insights in to why people do what they do on dating sites, how they rate themselves, and what triggers their response...
It's more of a psychology take than a marketer's perspective, but you'll get some new ideas for angles - especially on the older demographic.
Cool, will put it on my reading list!
The book is called Dollars and Sex in the US, and is available on Kindle...
Really? That's strange.
Haven't heard of a book being name split-tested in different markets before!
Yup, it's pretty common in the book publishing industry... It's 'Dirty Money' in the UK and most of the commonwealth, 'Dollars and Sex' in the US, Canada, and Australia. The book cover is much nicer on the 'Dirty' version too...
Haha, I can get both for Kindle from amazon.de and the "Dirty Money" version is 3 bucks cheaper 