Where can you find the blackmarket?

Answer 1

Black marketing is illegal trading, so it's everywhere.

A quick example: a barber must have a license. If someone without a barber license decides to give haircuts for money in his kitchen, he is a blackmarketer and anyone who gets a haircut from him is participating in blackmarketing. That's pretty low level, though.

Another example: in New York State the taxes on cigarettes are very high. Some people will drive to North Carolina where they are lower, buy a LOT of cigarettes there and take them back to New York to sell. This is tax evasion and the authorities will be on you like white on rice if you're found out.

Of course, if you're talking about the online game Howrse, see the related question below.

Answer 2

First off, the black market isn't an actual market or website.

A black market or underground economy is the market in which illegal goods are traded.

People use Ebay, Craigslist, local classifieds, for day to day selling of inexpensive, illegal goods. (Obviously not all items on these are illegal)

Top dollar items are mainly word of mouth from friend to friend in high places in different countries. Most of these people have friends in many places.