Today Just browsing over the internet and doing by usual online shopping which am so much fond of, I noticed an unusual trend. A lot of sites these days, have started offering product discounts just to like their page or just to sign in with your facebook account and give them access to your wall's for posting notification which gets published on your stream. Assuming online commerce to be some billions of dollars an year, assume how much money does this discounting thing is saving customers. As a business model, if FB starts charging all businesses and products pages some monthly fees to engage with customers I dont think businesses would have an issue. After all this kinda social engagement gives realtime feedback and realtime market research data for improving on products. Not sure if the the business dev team in FB is already thinking on these lines. Seems like way to go facebook! I will buy some shares once you get public lolz.