I have over 400+ domains and this is what I would do.
1. Install some type of free offer like a free ebook. I use the butterfly script on almost every site I do.
2. MAKE SURE YOU HAVE SOME KIND OF BACK END. YOU SHOULD NEVER DO ANYTHING WITH OUT A BACK END IN PLACE TO MAKE YOU MONEY.
3. Offer them some kind of upsell, oto etc
4. Once they join they are affiliates and give them a GREAT WIIFM to promote your site.
5. Use aweber to add new content to your blog and then have aweber email people from now untill the cows come home to visit the new content on your blog.
6. Make sure you have affiliate links or adesene or ypn on the blog.
This makes you look good, you gave them something free, then paid them to promote your site. Gave them free content every 2 weeks.
You get paid for helping others.
Thanks
Charles