Watch out for your Bitcoins

If you're planning on buying a Bitcoin, please choose a big site as most of these small "dark" sites will vanish from one day to another. $44 million in Bitcoins just vanished. This is a lot of money, it's as big as the entire market cap of Namecoin.

Dark net market Sheep Marketplace has shut down after $5.3m (£3.3m) in bitcoins was stolen from the site.
The site shut down over the weekend and visitors today see a notice blaming the theft for the closure.
It said the theft was carried out by a vendor on Sheep who exploited a bug in the site's software to steal the virtual cash.
Sheep Marketplace rose to prominence after the FBI shut down the illegal Silk Road marketplace in October.