With a drop of 20% amounting to a loss of market capital of $120 billion, Facebook has sent tremors in a market that has been on tenterhooks while making new high’s daily. Will this fall be the indicator that the market is ready to fall down? Here are some views on this shocking fall. Facebook stock drops roughly 20%, loses $120 billion in value after warning that revenue growth… Facebook Inc. is evidently not bulletproof. On Thursday, Facebook lost about $120 billion in market capitalization…www.marketwatch.com