An electronic bulletin board for use in a shared always-on environment wherein a user may manipulate messages from a remote location. A license distributed from a license server to a computing device of a user may be uploaded to a license synchronization server, and rebound to other devices registered with the service, thereby enabling access to the licensed content from other computing devices. The bonding layer secures the protective outer shell layer to the conductor. Such a wave attenuator can comprise a first row of support members extending vertically relative to a seabed and a second row of support members spaced from the first row.