"Echoing bits from several commenters above me, I frequently hear from people who ask me to define 1) Twitter; and 2) RSS.There may be a critical mass of people using (or hearing about) Twitter but that doesn't mean they know about its uses other than writing they are eating sandwiches and taking walks, aka what they are doing.The mass of people who don't know about RSS are typically those who don't read blogs. I met someone this week who was confused about what a blog was and asked for a definition.When you consider I stumbled across this blog post of yours, Mitch, via a feed reader is indicative RSS isn't dying anytime soon." - Ari Herzog