2035 20160701171657.0 ASTROimport-192 Aerts, C. 2006 Pulsating B Stars Discovered by HIPPARCOS We present a classification of 267 new variable B-type stars discovered by Hipparcos, which results in, among others, a huge number of new Slowly Pulsating B stars and several supergiants with ? Cyg-type variations. Our results clearly point out the bias towards short-period variables of earlier, ground-based surveys of variable stars. The position of the new beta Cephei stars and Slowly Pulsating B stars in the HR diagram is compared with the most recent calculations of the instability strips. The new Slowly Pulsating B stars almost fully cover the theoretical instability domain. The supergiants with ? Cyg-type variations are situated between the ? Cephei stars and the Slowly Pulsating B stars, on the one hand and, previously known supergiants that exhibit micro-variations on the other hand. Finally, we introduce the follow-up study of the most interesting targets that we have started in the course of 1996 and that is still ongoing. Waelkens, C. De Cat, P. Kolenberg, K. Kestens, E. Grenon, M. Eyer, L. Journal of the American Association of Variable Star Observers (JAAVSO) 35 2006 58 http://esoads.eso.org/abs/2006JAVSO..35...58A published in REFERD