Spinoff mania here to stay, but who wins? By: CNBC.com News October 07, 2014 at 13:39 PM EDT Hewlett-Packard, eBay, Barnes & Noble-the rash of spinoff announcements this year has been dizzying. Should investors cheer on for more or take caution? Read More >> Related Stocks: Barnes & Noble General Electric Hewlett-Packard Morgan Stanley eBay