Put a Cork (or Plastic Stopper) in It

This article from The Wall Street Journal (still free at this writing) has been in my inbox for a couple months. But it's a good one. It's about how the corks in wine bottles have increasingly been replaced by plastic stoppers. It's a good example of how firms mature and evolve, how substitution drives competition, and potentially about efficiency and creative destruction. It also has an interesting slide show.