Systems and methods for information sharing are disclosed. In one embodiment, a system for information sharing includes a host device, an external device that is used in conjunction with the host device, an external bus that the host device and the external device use to communicated with each other, and an information sharing device that is connected to the external bus so as to be able to monitor communications transmitted over the external bus between the host device and the external device, the information sharing device being configured to share information about at least one of the host device and the external device with a user of those devices.