A black market is just like a normal market where you buy and sell goods and services. The only difference is in a black market buying and selling is done illegally. Basically, the aim of a black market is to provide people with goods which are not available in the legal markets. For example, a black market will provide you with a drug which is not legally allowed to be sold in a country due to its negative impact on people. Dealers of a black market make connections all around the world in order to do black marketing of goods and services.
One of the popular agendas related to black marketing today is the selling and buying of human organs through illegal ways or by taking advantage of needy people. Also, species which are rare and endangered are the victims of these black markets. People involved in black marketing sell them to get mind-boggling amounts of money. Weapons are also being sold in a black market. Additionally, it is not necessary that a black market can run through traditional ways. Nowadays, products and services are sold electronically as well. The dealings are done over the internet within a few minutes.