For many people, the first time they realized that there was such a thing as a person who will sell other peoples items on the Internet was while watching The 40-Year Old Virgin. In that movie, one of the main characters owned a store from which she took the unwanted items that other people had and sold them on the world hottest auction block.
In fact, this is a service that has been around for quite a while, as enterprising individuals saw an opportunity to offer a service that would require an element of expertise and could appeal to people by taking some time off their hands.
These are both key concepts to remember when you consider selling any of your own materials on eBay. Professional sellers are just what they seem- people who make a living by selling items on eBay on commission, usually at a percentage of the selling cost of the items. Others may give people a flat fee for their product and then sell it on eBay, keeping any profit for him or herself.
Either way, an eBay professional may be the best way to go if you are new to the eBay system or simply do not have the time to figure it all out for yourself. EBay professionals are already very versed...