Two new online products are available to the international tree-ring research community: the Bibliography of Dendrochronology, which currently has 10 000 references and is the world's largest online bibliography specialised in tree-ring research, and the Glossary of Dendrochronology, a searchable database of 351 terms and definitions in English, German, French, Spanish, Italian and Portuguese. Both databases are the result of the collaboration of numerous tree-ring scientists from around the world.