A recent debate on an email list for serious email marketers I hang around on prompted me to think and then assess these two options when trying to capture data from site visitors; whether you are better to serve someone a pop-up on arrival or a pop-under when they leave (or even a downstream pop up), so there is a form sitting in the middle of their screen. The conclusion I came to was none of the above. We talk a lot about brand and the online reputation that your brand has and I can only equate the use of pop-ups, pop-unders or downstream pop-ups to the “do you want fries with that” saying of the fast food outlets. It…