Since its introduction in October 1983, the Survey of Income and Program Participation (SIPP) has provided both cross-sectional and longitudinal data broadly applicable to analysis of various aspects of economic well-being. Many developments have taken place in the SIPP since October 1987, the last time the program was an agenda item for the Joint Advisory Committee. This paper summarizes these developments including sample restructuring, budget initiative activity, cognitive research, event calendar experiment, computer assisted personal interviewing, marketing campaign, liason with external groups, and the Committee on National Statistics evaluation of the SIPP.