Question: Why is it that most good paying jobs are not posted? It's important to know why and how come.

Answer: Because the companies aren't blowing their money on advertisments. They are saving it to pay the employees good pay and on business expenses. To find a good job. Go to the business you are interested in and ask them if they are hiring. That is the best way to find what you want.
This question from the Yahoo Q&A forum is categorized in the topic: Education & Reference