13 Jun 06
12 Jul 06 12:23 pm
They will probably get fed up if the page you are sending them to is primarily a squeeze page (as opposed to a sales page that happens to have a subscribe box somewhere down the page).
In this case, a review site will work best (ie review 4 products with short reviews, or something). You can have a small newsletter sign up box at the bottom, or a blog, and a subscribe to the "topic" review blog at the bottom. This should clearly distinguish it.
Another way is to thank them for subscribing and then tell them about the product you recommend, and then warn them in advance that they'll have to enter their email address to log in, but that's ok because... etc.