It should be pretty easy to access via the TOR network, which in itself is easy to access.
I've often thought about accessing the 'underground web' but I heard a horror story about a guy that used it once. However the story was probably bullshit and the network probably 100% safe.
But the silk road, 70% of stuff for sale there is narcotics. Pay with bitcoins, get the gear posted to you.
Yeah I've read all about Silk Road. Online black market.