Electronic and cryptographic currencies; providing currency exchange for foreign, domestic, electronic and cryptographic currencies; providing currency benchmark valuation; valuation of financial transactions involving foreign, domestic, electronic and cryptographic currencies; providing real-time and historic financial information related to foreign, domestic, electronic and cryptographic currencies; financial information in the nature of rates of exchange, namely, determining the value of domestic and foreign currencies relative to electronic and cryptographic currencies and vice versa; providing financial valuation services and financial valuation information on a subscription basis to participants via computer terminal and mobile communication device and providing financial advisory services relating to currency exchange pricing