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Sounds like a good old-fashioned niche directory. They work well, but the question is: how are you going to monetize it? Is there enough of a market to charge for inclusion, or are you going to run affiliate ads or Adsense on it?
make sure your intent is clear. I think sometimes you can do a bit better by keeping it ad free to show the clear intent of the directory...some directories are made specifically to sell adwords ads though. both work in different markets.