This Resource Letter provides a guide to the literature in the still rapidly developing area of spin-dependent transport phenomena, which forms the basis for applications in magnetoelectronics. Citations to original papers and review articles are provided for the major topics of giant magnetoresistance, spin-dependent tunneling, exchange coupling between magnetic layers, and micromagnetics of the nanostructures in which these occur. Related phenomena, such as exchange coupling in magnetic multilayers, exchange biasing, and the various experimental techniques developed to observe these effects are covered more briefly, with citations only to historically significant papers and selected review articles.