This extension you can add new custom newsletter field in newsletter form,
(1) many times you need to add new field in newsletter form after downloading this you will show new field in newsletter form.
(2) download it is very easy . then you can design newsletter form as per your needs.
(3) you can call this block in any page where you want to show up the newsletter by this you need to put this block {{block type="newsletter/subscribe" name="left.newsletter" template="newsletter/subscribe.phtml"}}
Features
(1) Easy to install and use
(2) 100% Free
(3) 100% Open Source
