While there will no doubt be tremendous demand for Facebook stock today, as it begins trading at 11 AM Eastern time, there should be plenty of it available. As David Angosti reported for Search Engine Journal, the social network raised its target IPO price range to $34 to $38. The move prompted a number of Facebook’s major stakeholders to increase the number of shares they plan to offer – and in some cases, that number went way up. I am not a stock broker; I don’t even play one on the Internet. But I think even the people who crunch these kinds of numbers for a living would be amazed by the c…