Now I’m generalizing here because obviously there are always going to be people who click away at other points on your lens, but it has long been said that the most profitable areas are at the top and at the bottom of a lens. Now I used to often just put a product or featured lens underneath the guest book as a way to use this idea, but the guest book makes even more sense.
Now I bet you’re asking why it makes more sense aren’t you? Well another piece of research shows that text links are more effective at selling than banner adds so if you add a text link in the guest book the odds are that people will click on it. I have just started to implement this idea on a few of my lenses so I’ll report back with my findings.