[RickM]

IMO, one could do well selling close outs, overstock, contents of failed businesses...etc. You could advertise in local rags and Craigslist to source the items.

Other interesting money makers are instructional "pamphlets". This comes in the form of paper booklets, CD or downloadable PDFs. For instance, one gentleman sells his advice on what to look for when buying a metal lathe. He sells the info for around $10. Another sells instructions on how to build phase converters...either rotary or static. The beauty is that you have an easily replenishable item to sell. Build once sell many times.

Some items like cheap jewelry seems to have way too much competition.