2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/11829The influence of new techniques on the discovery and characterization of pulsating variables has been enormous. In this paper, I will review the methods and results of a number of research programmes which have dramatically altered our ability to study variable stars and will likely bear fruit for many years into the future. Specifically, I will touch on results from the MACHO and EROS Projects, the HIPPARCOS mission, "flux difference" photometry and a handful of new algorithmic advances which I consider to be important.7 pages, to appear in "A Half-Century of Stellar Pulsation Interpretations: A Tribute to Arthur N. Cox", ed. P.A. Bradley and J.A.Guzik (ASP Conference Series). Uses paspconf.styAstrophysicstext