A couple of business articles I've read suggest Facebook wouldn't be a good long-term investment, noting it's overhyped because a billion people (or whatever the number is) subscribe to it. Also pointed out in the press is that many companies are re-examining the cost/value of advertising on web ads on sites such as Facebook; they find traditional advertising (print, radio, TV) still are more effective. Therefore, companies will be looking for better ad deals from Facebook. To combat this, Facebook would have to vastly increase its number of advertisers, possibly to the extent of pissing off users. Advertising is how they make their money. The so-called experts in the business press suggest if you buy, get ready to sell when it peaks, because it might fluctuate like a roller coaster, dropping down to below the initial share price.