Retire@21 published a Top30 of Web Young Entrepreneurs according to the Annual Turnover. However I guess there are many under table websites which are much richer than these Top30. At least it has missing 5 types of websites, I believe these 5 types of websites are really making big money out there:

  1. Pornography
  2. Munitions
  3. Gambling
  4. Fraud
  5. Drug / Dope