What online resources would you draw on to conduct secondary research regarding the industry/target market feasibility of your business idea?

Feasibility Analysis

Entrepreneurship: Successfully Launching New Ventures, 6th Edition. Barringer and Ireland. Published by Pearson/Prentice-Hall.
1. Read Chapter Three Notes
2. Chapter Reflection/Summary :
A summary of the main chapter points using your own words and a brief personal reflection of what was personally most interesting or useful to you from the chapter.
3. Answer the Application Question below :
If you were interested in opening a musical instruments store near the University you attend in order to sell guitars, drums, and other types of musical instruments, what online resources would you draw on to conduct secondary research regarding the industry/target market feasibility of your business idea?