Following seems a good link for advice on buying stocks. I am going to religiously follow them and invent my own method.
http://articles.moneycentral.msn.com/learn-how-to-invest/7-questions-to-ask-before-you-buy.aspx#pageTopAchor
My stocks were down by 50% by they have already recovered by about 90%. I did a couple of glaring mistakes when the stocks were down. My intuition was to buy a few I knew were good, but denied that opportunity to make money, thinking about the rotten economy and not believing that it is going to get up and run. But, that was a mistake, as has been proved already to a certain extent. Currently, I am getting to understand the process and pinning down a method to buy stocks.