AWeber has a new feature rolling out today that utilizes social proof to encourage people to opt-in to your list(s)… a subscriber count chicklet.
The chicklet displays how many people are subscribed to a list, and it appears below the “submit” button for opt-in forms.
It updates automatically as new subscribers join the list.
But if you have used the HTML code to add a form, you’ll have to replace the old code with the new code that includes the chicklet.
Now it’s purely an assumption that this social proof will improve opt-ins.
I’d suggest running a split test where one form has the chicklet and the other does not.