I used to receive the iMore news letter but my email has changed and I would like to register my new email as I unsubscribed the the old email account.
I can't find it anywhere on the site. But if you go to the "Win a new Macbook Pro" post (Win a new Macbook Pro from iMore! | iMore), the contest widget will ask for your email address when you click "Sign up for the iMore Newsletter."
Ok so I had the same problem trying to do this from my phone but when I went to my mac and clicked the line about being subscribed to the newsletter to get more entries a box pops up asking for your name and email.
I can't find it too. And on the "Win a new Macbook Pro" post I see that I'm subscribed, but I didn't do that and I never got any newsletters from iMore.