Evidently, many hoarders/speculators decided to cash out at once -- much like the audience in a movie theater would try to go through the exit door at the same time if someone were to yell "fire!" The naive souls who recently bought bitcoins to make a 'quick buck' are in for a rude surprise. In the short run, no one knows how Bitcoin's price will fluctuate. In the long run, however, if Bitcoin continues to work as in…
On the contrary this is just the most pronounced in a series of recent coordinated DDOS / aggressive selling attacks designed to (successfully) inspire panic. The attackers unload their bitcoin before the price gets smashed and presumably buy it all back again from frightened speculators. If anything it might be a positive sign for bitcoin that the attackers are keen to acquire it! On another note, mtgox.com the main…
http://bitcoincharts.com/markets/ will show prices in the major exchanges, if it's online. I had to use the Google cache.