Semantic technologies have become mainstream within STM journals, at least for the larger publishers and platform vendors. Semantic enrichment of content (typically using software tools for automatic extraction of metadata and identification and linking of entities) is now widely used to improve search and discovery; to enhance the user experience; to enable new products and services; and for internal productivity improvements. The full-blown semantic web remains some way off, but publishers are starting to make use of linked data, a semantic web standard for making content more discoverable and re-usable (page 143).