WHAT: It’s not easy to find and access, but the Silk Road website is like the eBay of mind-altering drugs. It uses the latest in anonymity technology to keep its buyers and sellers seemingly invisible.
HOW: Some 350 drug items are for sale on Silk Road at any time, including marijuana, heroin, LSD and ecstasy. Consignment sellers are located all over the world, though mostly from the U.S. and Canada.
WHY IT WORKS: The only money good on Silk Road is Bitcoins, a “file-sharing” currency that is currently untraceable. Bitcoin exchange websites convert currency into anonymous digital cash.