$FB the pull backs have worked nicely over the last 18 months. The stock has put in a few head and shoulder tops that resulted in sharp moves lower. The recent spike down from record highs sent the stock to long term support at $72. Much like each pull back in the S&P 500, every single dip for Facebook's stock has been a tremendous buying opportunity. Until that theme changes, the money is made following the trend.
$FB is now over $76 and could be in the early innings of a move over $100.