This article goes over the financial basics of Knight Ridder’s putting itself up for sale, as well as the implications of its doing so.  Moreover, it talks about the reasons why a private equity firm or another company might decide to make an offer.  The article also discusses the spin off of Warner Music very briefly at the end, and how even though that troubled section of Time Warner seemed to have been in the doldrums, it has provided a nice return for its investors who bought it.