A very nice graphic from CBS MarketWatch, telling the long sordid history of this corporate disgrace:
click for larger chart
Source: CBS MarketWatch
Your Left and Right arrow keys allows you to navigate the chart.
Source:
CBS MarketWatch
http://cbs.marketwatch.com/news/popup.asp?id=news/popup/enrn_timeline/default.htm
There’s a problem with linking directly to that frame — it removes the “scale” of the stock price, i.e. your readers might not know what that’s a chart of and certainly won’t know the corresponding values.