Twitter is currently looking to add more investment banks to its list of those helping distribute the company's stock when it goes public sometime before this Thanksgiving; while these underwriters usually split 7% of a deal's proceeds, higher profile deals result in lower fees since they are considered easier to sell to the public...
Source: http://www.phonearena.com/news/Tweet-money-Twitter-IPO-to-hit-the-market-before-Thanksgiving-aims-to-raise-1-billion_id47631
Source: http://www.phonearena.com/news/Tweet-money-Twitter-IPO-to-hit-the-market-before-Thanksgiving-aims-to-raise-1-billion_id47631