In the past year, substantial progress has been made in the modeling o
f electrostatic interactions in biomolecules. This review highlights a
dvances in the following areas: first, the efficient computation of lo
ng-range electrostatic interactions in detailed molecular simulations;
second, the application of the Poisson-Boltzmann electrostatic model
in conformational analysis; third, the application of the Poisson-Bolt
zmann model in quantum chemistry calculations; fourth, the development
of atomic parameters; and finally, the modeling of ionization equilib
ria in proteins.