I-broker

An i-broker is a "banker for data" or "ISP for identity services" — a trusted third party that helps individuals and organizations share private data the same way banks help exchange funds and ISPs help exchange e-mail and files. The term was introduced in the Social Web paper describing how a new layer of Internet infrastructure is possible based on the OASIS XRI and XDI specifications. However the concept of an i-broker is not specific to any one technology or protocol, but rather a business and social function, similar to that of a bank or an ISP.