This was exactly what I was looking for. I was searching high and low for a way of invisibly submitting the name and email values of my (contact form 7) form - to my trafficwave subscription/list. And this plugin worked like a charm.
I found it really simple to set up and use, and it did exactly what I needed it to. Perfect! this really helped me out. Thank you so much for this excellent bit of programming. Very Cool.