What's most evident on this long term chart is the significant support at the $1 level. From my studies, as has been mentioned here, the $1 level is the most significant for support and resistence on charts followed by the 10, 100, 1000 and 10,000 levels . Anyway, this knowledge is quite helpful in keeping focus when trading markets have a tendency to get to our emotions. Of course catso doesn't need a chart when a vastly undervalued company is getting beat up, he just scales down his prudent buy orders like a pro.

http://bigcharts.marketwatch.com/quickchart/quickchart.asp?symb=ca%3Aprb&insttype=&freq=2&show=&time=13