1. A computer implemented method for trading information related to commercial companies via a communication network, the method comprising the acts of: collecting, at a central computing system, non-confidential exchange data, wherein collecting non-confidential exchange data includes collecting benchmark information, wherein the benchmark information includes at least one of asset information, public business valuation information, private business valuation information, portfolio information, capital structure information, and performance information; providing an interface over the communication network displayed on a host computer at the first user location; receiving from the host computer the non-confidential exchange data from private company information generated on a host computer at the first user location, wherein the private company information includes non-confidential data and confidential data, and wherein generation of the non-confidential exchange data includes transforming the confidential data into classification information associated with the non-confidential data based, at least in part, on a type of product or service offered by the private company, and wherein receiving from the host computer the non-confidential data includes receiving only the non-confidential exchange data from the private company information, at the central computer system wherein the non-confidential exchange data contains no confidential data; and generating on the central computer system output data, based, at least in part, on any collected non-confidential exchange data; and transmitting at least a portion of the output data over the communication network.