[Model Aspect] interacting with members
members are listed when GETting a collection, and their identity and metadata about them is exposed through regular atom mechanisms. if members are editable, an "edit" link in the entry (http://tools.ietf.org/html/rfc5023#section-11.1) will allow clients to update the member entry, by using this link to PUT or DELETE the entry resource. if the entry is a media link entry, then there might be a "edit-media" link in the entry (http://tools.ietf.org/html/rfc5023#section-11), which will allow clients to update the media resource, by using this link to PUT or DELETE the media resource. this model allows clients to both interact with a media resource's metadata (the "media link entry"), and the media resource itself.