It’s 2012, Why Aren’t You Using These Hacks In Your App?
blog.contactually.com
blog.contactually.com
Can I just say that this is an example of what not to do? If I choose not to sign up for your service, sending me e-mails begging pretty please isn't going to magically change my mind. If anything, it'll make me less inclined to recommend your service to someone else (as well as me putting your e-mail address into an auto-trash filter).
A much better solution is to have 2 boxes "Email address", "password" and a button to make it Go.
If you need "inside leg measurement", "first pet's tail fur colour", "crazy aunt petunia's whisker count at last birthday", you can ask for that as part of the natural flow of using your service later.
Get people in and using it, make it really clear before they click the signup button what the primary benefit of your service is.
Thanks for the great tips!