The specifics of Facebook's massive initial public offering are starting to trickle out of sources in the know, and while the details are more specific than anything we've seen before, many questions still remain. A breaking alert from Dow Jones Newswire names Morgan Stanley as the likely candidate to manage the deal. According to the ticker, Facebook is "close" to signing a contract and  filing paperwork for an IPO worth between $75 and $100 billion as soon as Wednesday. The Wall Street Journal is promising a follow-up to the Dow Jones scoop, and we'll update this post with more information as it breaks.