I'm going to keep this blog post short. Next week I'll be interviewing Jason Katzenback on my blog to answer your questions about Portal Feeder.
What I can tell you is that it is an amazing set of tools and resources that give you a better than unfair advantage in the search engines. And also includes mentoring so you can help guarantee your own success.
If you want to see proof of the kind of money people have been making using Portal Feeder (and yes, I myself use it), visit http://www.portalfeeder.com/blog/
You'll also get to see a lot more detail about what it can offer you.
All the best!
P.S. Go there right now as they have only reopened the doors after 15 months and I'm not sure how long they will be open for. They keep their memberships limited in order to preserve the value of it.