European Union terminology. Available on most European Union languages.
You can search for a name from its meanings. The site has more than 10,000 names with meanings.
Links to multiple LOC thesauri, including GLIN, the Global Legal Information Network.
Astronomical terms. Searches may be performed in English, French, German, Italian, and Spanish.
Over a thousand instruments, with relational links based on the Library of Congress Subject Heading...
A list of LOC Classification schedules.