Great on-site consumer testimonials are another super way to sell your product. Everything becomes a lot easier if you are selling a great product. You need more than just a strong product. And there must a strong, unique reason to buy it from you. Here's how to do a Net-based competitor analysis .
Wide appeal is great, but the Internet is ideal for niche products.
A specialty item that can be otherwise hard to find, particularly if it is a collectible, is a good choice. And if it's a niche product, it should at least have a wide geographic target market. Kill this product concept. Do some more SE research to see if your product can be found. Determine if your product has some extraordinary feature that allows some other highly efficient, low-cost way of building traffic to your site.