Alphabay Market
AlphaBay Market is one of the most well-known darknet markets, originally launched in 2014 and then taken down by law enforcement mid 2017. It has since been relaunched by it's co-founder and head of security "DeSnake", who claims it is now more secure and better than ever, accepting only Monero, and offering an i2p mirror to maximize uptime and accesibility during DDoS attacks.