This article from the BBC notes that a notorious site used for the buying and selling of all sorts of contraband including illegal drugs, weapons, and even humans has been shut down. Long known about but very difficult to find, the Silk Road website was only accessible through a private network using what is known as The Onion Router, or the TOR network. The site now has a single page stating the feds have seized it.

It also used the virtual Bitcoin currency in order to keep the transactions anonymous, and apparently the owner was involved in some untoward activities himself.

This is a positive in my opinion, never mind the illegal drugs and guns, but the human trafficking, child pornography and murder-for-hire contracts it was known for has been shut down as well. This is a triumph for those who fight against such things.

UPDATE: There is a much more detailed account of what happened at this link.