This is the basics of getting something like this started:
1) Foundation that is advertised and marketed: The Psychic Guide.
2) Funds for testing psychics. This can be quite a costly area if you really think about it. The future funds will be sorted out by Guide sales, howeer this does not cover initial start-up capital for creation of website, publishing fees, and on-the-road costs for testing hundreds of psychics.
3) A Board forum whereby the hub of operations could take place, like detailing who was tested and the corresponding review, future plans, upcoming psychic shows, whatever else.
4) The Board primarily concentrating in countries with easiest possible route to end product. For example America and Australia; English speaking countries, quite conscious, ready market.
5) Publishing company to produce the Guide.
6) Website which is the conductor of online marketing campaigns for maximum sales of Guides.
These kinds of things can start off with whoever you get your hands on and is willing to be a part of the foundation. Internationally recognised psychics with hardcore degrees can come later.
The biggest hurdle is all the testing fees, compounded across a whole country... for example; A psychic charges $200 for 30 mins. Lets use it as an average. You test 10 psychics and thats already $2K. 100 psychics would result in $20K. Now lets consider that at least 3 judges need to verify a psychic. So it already blossomed into a 60K figure.
One way to get around it is to just test the most renowned psychics only, that way future operating costs would only consist of psychics that were awarded 'White Stars' and whatever new talent. Let's say you only test the top 50, and every year you 'only' select 50 (included Star awarded psychics in future year budgets). So it drops it down to 30K. Spread it over like 6 months, with the first half of the year dedicated to testing psychics, and the second half dedicated to marketing the Guide.
And that was all just spontaneously come up with on the spot. Feel free to add/ subtract/ review/ critisize what I have said above.