I'm not a developer but am hoping you folks can help. Is there a feature that would allow me to give a text message number to people, "Send a text message to 123456 with your e-mail address and be automatically signed up for our mailing list"...Obviously then, the user is then added to our mailing list. Is there a way to do this? Thanks!
Actually, Constant Contact Labs - the company's research group - is experimenting with text messaging technology, and we're just beginning to test something just like what you describe! If you'd like to learn more, please look here: http://conta.cc/livefeedback
(At the bottom of that writeup are instructions for signing up for the beta test - take a look!)