I was contacted by a firm a couple of weeks ago that was marketing basically doorway pages in conjunction with PPC. What they were offering is this.
Send $1,500 to them and they will create a "mini site" that will rank in the top 3 to 10. $500 of the 1,500 will go to the setup of the "mini site". Then the $1,000 will go to the PPC at .10 a click. They would charge .10 for each click that went to your "real" site.
I discussed this with the guy on the phone for about 30 minutes as I was real interested in concept/scam. His sales pitch was that the .10 was probably much less than I was paying Google and the people that clicked thru to my site would be more qualified. He pointed me to examples of his "mini sites". Basically these were sites made up of about 5 pages specifically designed to rank high.
He insisted that they were not "doorway" pages. Well, to each his own. IMO they were. It seemed to me that my money would be best spent just optimizing my site. Why would I want to pay someone PPC, when I could obtain the same thing by optimizing my own site. To be honest, I was impressed with his imagination, but don't agree with his methods.
Oh, I might ad that he said it would take upto 6 months to work. Takes time to reach the high page rank, etc, etc. His office was in Las Vegas.
Now, I like Vegas, but my thoughts were I would be better off playing Black Jack than giving him my money.