Where is Facebook's stock going to top out at today?

Not ready to put your money on the line yet? That's OK, join the fun with a harmless prediction via Tweet and have your vote counted on the site thrown up overnight on Tuesday by James Proud.

The current average stands at a forecast of $54 a share or a total value for Facebook of $135,718,802,154.

However, if you're feeling lucky there are a few sites that offer the ability to acquire a single share. Consider it a souvenir or make it a gift.

Wherever the final numbers land, Mark Zuckerberg is estimated to scoop up a tidy $20 billion. That'll still make him one of the richest people on the planet and not that far behind the lucks of Buffett.

Of course Zuckberg isn't the only one cashing in. Co-founder Saverin has been creating a buzz in the headlines this week after renouncing his U.S. citizenship to dodge a massive tax bill. This has been becoming a hot trend but one which the government now wants to put an end to.

However, the Facebook IPO effect is way bigger than just a few billion extra in the bank for a few stock owners. The area surrounding Silicon Valley has been experiencing a huge boom in spending from luxury cars flying off the lot to retail spending rocketing, long lines stretching at restaurants to homes selling for a $1 million over asking.

However, there is perhaps one very important point that most entrepreneurs are missing here and perhaps the most important one for them personally. That is the marketing opportunities and profits to be had from cashing in on the buzz and trends of the second if you can act fast enough.