Bloomberg Businessweek, February 21, 2012 by Karen Weise
http://www.businessweek.com/technology/why-facebook-must-stay-quiet-02212012.html
Since the 2005 reforms are fairly recent, and the IPO market has been cool during much of that time, lawyers are still quite conservative about how they interpret the relaxed rules, Talley says. They advise their clients to keep extra quiet, which can prove to be particularly hard for tech companies, where “part of the culture is to have a little bit of public swagger,” and showmanship is part of the business plan, he says.