There are several web sites that provide charts. Yes, it went through a huge boom and bust in June 2011 after the first round of major media reports about it, when the baseline market was small and tons of people tested out bitcoins and then abandoned them. It went through another small boom and bust in August of last year, probably because of the pirateat40 scare. All time: https://blockchain.info/charts/market-price?timespan=all Last year: https://blockchain.info/charts/market-price?timespan=1year It could be going through another small boom and bust now, we'll see. However, if you follow the 3 year trend, on average it continues to increase, and at a relatively fast rate. As the market grow, it becomes more stable. Also, https://blockchain.info/charts http://bitcoincharts.com