I was following the Corsetorium webring around for a bit. Many wonderful sites, I'd suggest following the ring about for a while.Here is a nice example site. Truly fascinating. If there was ever a garment that inspired mixed feelings in me, it is the corset. I had to wear a corset once in a costuming class. Not terribly comfortable as lounge-wear, but neither was it painful--just....different. As a garment the corset has been a practical undergarment, a fetish object, and/or a torture chamber, depending on who was involved.
This article sums up the dangers of tight-laced corsetry. Some of them bring to mind the consequences of footbinding. Moderation in everything, people! Moderation!