Can you name a service industry in it's late-growth or mature stage (flat or single-digit growth), perhaps characterized by high barriers to entry and strong networking effects? The industry is also dominated by one company with high market share (+40%), leaving all other competitors locked in small niches or with going concern issues. I have one industry in mind, but I'm looking for a comparable. If someone hits this out of the ballpark, I'll consider buying you a book on Amazon. (No that's not meant to be a hint re: industry.) Thanks ...