Come to think of a product to sell online could be a pain in the ass for business entrepreneur or a simple housewife looking for extra dollar in the pocket.

Products should be paired with demand from your targeted audience/customer. If your product is a state of the art software but with little demand, then you've already cursed yourself!

Sell something that can offer your potential customer a solution for a problem and make sure that the market segment is big enough for you to make profit even if you can pull 1% or even less of the market share for yourselves.

If you are good in property market, then sell a manual or guide on how to make big money through e-book or membership based website. This is just a simple example you can explore onto.

What most important is to sell product which will benefit or bring more money than what your customer had paid to you.