1. A notification system, comprising: a context analyzer to determine a context associated with an entity that utilizes a plurality of devices, wherein the determined context comprises accessibility to one or more of the plurality of devices; and a notification manager configured to: based on the determined context, determine which device of the plurality of devices is currently accessible to the entity and whether the entity is currently available to accept a notification of one or more notifications generated by at least one notification source for the entity based at least in part on the determined context at the determined device, determine a value of the notification to the entity that is based on a degree of truncation and/or summarization of content of the notification when the notification is conveyed to the determined device, wherein the degree of truncation and/or summarization of the content of the notification is based at least in part on a type of the determined device; and when it is determined that the entity is currently available to accept the notification at the determined device and based on the determined value of the notification to the entity, convey the notification to the determined device.