TDG 1 for Metadata manages a profile that includes the set of data categories that can be used to describe language data resources, web services and applications with keyword type of metadata. It supports all linguistic data types that are required in the emerging eScience scenario, such as speech and multimedia recordings, written resources, annotations, lexicons, data category registries and ontologies, schemas, tools of different sorts and many others. The data categories included are partly taken from existing sets that have proven successful in the past. Due to the dynamics in the field, new data categories have been added and will be added to offer the necessary semantic scope. In addition, the requirements of sub-disciplines will be accommodated. Users will be able to make their own Data Category Selections to describe their resources appropriately. The intention of these descriptions is to foster visibility and re-usability.