After the recent complaints that smaller investors were not as informed as larger ones about the Facebook IPO, the SEC is reviewing the "quiet period" rules. These rules restrict the communications that an issuer may have with investors during an IPO.  Attached is a letter (posted by the Wall Street Journal) that SEC Chairman, Mary Schapiro, sent to Rep. Darrell Issa, Chairman of the House Committee on Oversight and Government Reform, in response to his concerns about the IPO process.