However, as @ panjul07 said many sites reviewed by the OP were scams and were not recommended to be visited, maybe the OP could revise as soon as possible.
May be OP can take the help from the community too. He can create a close circle or public whichever suits him. Get a team of market observer. Monitor the sites, monitor their activities, customers reviews etc etc.
When something bad is coming then remove the site in a separate section where people will know that it's risky playing in that site?
He can if he is willing to seek for a help, he can search for the information in the forum and I believe he can find relevant ones.
This forum is very active and information are very helpful to determine the reputation of a certain gambling sites, here, remarks and feedback are not bias.
I think having a community powered forum like this one will not work since if that was the case we could just use here (many of us actually do use here but we already have here so we don't need a new one) however if OP just hires some known gamblers and famous developers and all that to talk about the depths of the websites he reviewed than it could be great.
I know it is hard to get funding on the early stages of a website like that and he is probably trying to get this done with as little amount of money as possible since this is not a work that pays well actually not pays at all during early days until you get bigger but he can probably find some people who can write articles of websites for 10-20 dollars and getting 10-20 articles (reviews) done would be probably enough.