<p>Gerald Roush started a newsletter called "Ferrari Market Letter" and made about $500k per year. Why can't you create a similar newsletter for Lamborghini.</p>

146: Group Annotations for College Textbooks and Lecture Notes

Vijay Peduru provides one million-dollar startup idea every Tuesday. 
These ideas won't help you build the next Instagram or Twitter, but would help you
create a $2K to $10K MRR(Monthly recurring revenue) business. The goal is to help you accumulate half a million to a million dollars in 3-5 years.
These ideas could be easily implemented without much tech background.