People speculate. People dream. And if the numbers are to be believed, people will drool. The current prediction is that Google, if it decides to sell shares to investors this year, would probably end up with a market value of $20 billion to $25 billion by the end of its first day as a publicly traded company. A $25 billion market value would instantly make Google worth more than Lockheed Martin, the big military contractor; Federal Express, the package delivery service; or Nike, the sports clothing maker. Read more: NYTimes (free reg. required).