"Another penny stock that is very attractive to investors is MannKind Corp., trading symbol MNKD. This stock is traded on the NASDAQ exchange and has a current price of $2.13 per share. The company is in the biotechnology sector and it has a good past performance, making it a great choice for most investors. MannKind has a number of promising products in the pipeline, including one that is waiting for approval from the FDA."

http://www.investmentadvisortips.com/best-penny-stock-picks-2012/