List of active .onion sites like silkroad Tor Wiki Search

To see the forbidden services you need to download the Tor Browser Bundle

Once extraction is complete, open the folder Tor Browser from the location you saved the bundle.
Double click on the Start Tor Browser application (it may be called Start Tor Browser.exe on some systems.)
The TorBrowser window will shortly appear.

List of active Onion sites. They can only be reached with a Tor Browser.

http://kio5ei7cuj2bp6z4.onion/blackmarket/      BlackMarket selling creditcards passports paypalaccounts.

http://silkroad5v7dywlc.onion/   marketplace of sellers selling illegal stuff

http://xmh57jrzrnw6insl.onion/     This is a Tor Search Engine

They use the anomynous payment system of Bitcoins