Learn To Identify A Good Site

What is the best way to identify a good income site?

There are many tools available online to analyze any url which gives out

1. Traffic to the site Alexa global ranking by Google is the best
2. Daily/Monthly unique visitors
3. Site value
4. Estimated daily revenue from advertisements.
5. How long the site has been running
6. Admin details
7. Scam rates in that category

My research reveals the following statistics for scam rates

1. HYIP     -  98%
2. Revshares and Matrix   -  74%
3. Traffic Exchange   -  15%
4. Marketing tools and Advertising sites - 5%