Reseller Defined:
The term Reseller according to the dictionary means to sell again i.e. to sell a product or service to the public or to an end user, especially as an authorized dealer, while making sure that you make a profit on the sale.
Reseller Hosting
Reseller hosting is no different either, a reseller buys a Web hosting package from a hosting company and tries to sell it independently. The profit for the reseller lies in either the discount or in the commission s/he gets from selling an account.
More...