Yeah, there was actually an article on this - I'll see if I can dig it up later. It evaluated the performance between asking them to refer right after sign-up

Yeah, there was actually an article on this - I'll see if I can dig it up later. It evaluated the performance between asking them to refer right after sign-up vs. after they have tried the product for a while. The message we currently use is something along the lines of "Now that you have a brand new link blog, it's time to get an audience", or something like that.