If you’ve got a site that you’re struggling to monetise sufficiently with adsense or whatever maybe this could be a way forward for you? It looks interesting. Remember of course, google isn’t too keen on those naughty boys and girls who buy and sell text links though, if you’re tempted to go down that road.
I’ve just had a quick glance and spotted an old finance site that I’m aware of that’s signed up. Nick, if you’re reading ..you’ll spot it too!