webs.com sites are also free and have the ability to make external links. That means you can make your sfi gateways into pages on your website. This is an example: http://www.sfi-rewards-4-u.webs.com
I recently looked to add the Google Adsense tool to a marketing platform that I currently use. I got a little sidetracked and came across a Website building tool from Google. All is free, and you can own a personal domain for just $1. The Website service stated that it's free to try for an entire year! I'm still in the process of setting mine up, but the steps are pretty simple. Hope this helps and good luck!
If your looking for a place that has everything you need GVO/HostThenProfit is the answer. They have it all:
Domain name service
Hosting
Cpanel access
video conferencing
autoresponder
Easy Video Producer (to make your own videos, Hosted by GVO)
Blogger builder and great support and training.