Not directly about the state of the dark-net markets, but an interesting and possibly important article about your anonymity on TOR - one of the mainstays of 'anonymous' dark-net web browsing: http://arstechnica.com/security/2014/01/scientists-detect-spoiled-onions-trying-to-sabotage-tor-privacy-network/
Stay safe - the internet seldom forgets.
So why doesn't the TOR community or Anon go after these malicious TOR servers?