A computer implemented system and method of sharing files between a link sharer and a link recipient over a network. The method comprises generating, in response to a request by a link sharer, a file sharing link to a file set, where the link does not provide a link recipient the ability to modify the contents of the linked file set. In response to receiving an indication that the generated link has been activated by a link recipient, displaying a representation of the linked file set with a display element configured to send a request for modification rights to the linked file set when activated by the link recipient. In response to receiving the request for modification rights, either automatically granting modification rights to the linked file set or sending notice to the link sharer indicating that the link recipient is requesting modification rights to the linked file set.