The most popular social networking site is hitting the public market very soon.Facebook just announced that it will be halting the trading of its shares on secondary markets this Friday at noon as it prepares to finalize everything for its initial public offering.According to the Wall Street journal, the website’s IPO will be in May which could value the company at $100 billion. Also recently there’s been trouble with Facebook’s CEO Mark Zuckerberg, who wants at least $5 billion more from Wall Street investors to finalize the IPO. However, he didn’t give them much face time by skipping the company’s first major briefing for analysts and bankers last week. The lead underwriter for the IPO is investment bank Morgan Stanley which will be featured in an upcoming video that will be shown when Facebook begins courting investors.