Exploring PPC and Other Online Business Ideas: Strategies, Market Insights, and AI Integrationl

I'm interested in starting an online PPC business and would appreciate any advice on how to begin. Where can I find comprehensive resources to learn the required skills? Are there any reports that provide insights into market sectors and the level of competition within them? What is the profit potential in this field? Which PPC platforms (e.g., Google, Yahoo) are best suited for different market areas?

I've noticed many companies in my country achieving significant profits in this industry, and I'm eager to study it thoroughly to pursue similar success. I'm also curious about how AI can be effectively applied in PPC. I have a background in physics and computer science and extensive experience as an algorithm developer, primarily using Python for image processing. I'm open to exploring other online business ideas as well, so any additional suggestions or recommendations would be highly appreciated.