Topic: [Release] Capture referral source on registration
It is important for us to know where our new members are coming from, so we have created a new extension to allow members to pick a referral source from a drop down list when they register.
You define the contents of the list in the Administration > Settings > Features page. Referral sources can optionally be tagged to ask the member for more information, e.g. "Other..." will ask them to provide more information.
To read more and download the software click the following link:
punBB Extension - referral sources
I have tried to keep the solution as simple as possible. I hope it is of some use to you