ExpertVoices was built on the open source multi-user WordPress blogging system to encourage STEM conversations among scientists, teachers and students. The NSDL ExpertVoices plugins integrated with the repository via the NSDL Data Repository services. In addition to NSDL single-signon, the extensions allowed experts to create context for resources to enhance discovery, selection, annotation, and use. The code for the plugins is attached to this record for download. There is also a link to a small selection of archived blogs.