We are studying a candidate technology for the EarthCube Cyberinfrastruture called brokering. In a generic sense a broker is an intermediary sitting between a client application and one or more resources. A broker can also interact with multiple clients on behalf of a single resource. What this NSF Concept Award is exploring is a Brokering Framework that serves as an integrating element for many resources, enabling the utilization of these resources by different communities using the protocols, metadata standards, semantics and data formating that are familiar to that community. This presentation discusses the project's current status and the issues being investigated, and contrasts the brokering solution with other approaches for accessing heterogeneous resources.