Expert Product Researcher Ecommerce

Answer the following questions:

Do you have experience in product research for ecommerce stores?
Do you know what a winning products is?
Do you know the difference between a general and niche store?
Are you searching in Youtube, Ebay, Amazon, Pinterest, Instagram, Facebook and all other platforms?

Give me answers to these questions. Only looking for a experienced product ---------- nd us your skype name and answers.