  The Leiden Atomic and Molecular Database (LAMDA) collects spectroscopic
information and collisional rate coefficients for molecules, atoms, and ions of
astrophysical and astrochemical interest. We describe the developments of the
database since its inception in 2005, and outline our plans for the near
future. Such a database is constrained both by the nature of its uses and by
the availability of accurate data: we suggest ways to improve the synergies
among users and suppliers of data. We summarize some recent developments in
computation of collisional cross sections and rate coefficients. We consider
atomic and molecular data that are needed to support astrophysics and
astrochemistry with upcoming instruments that operate in the mid- and
far-infrared parts of the spectrum.
