If Sheldon Brown had been only an excellent bicycle mechanic, the esteem in which he was held, while great, could not have extended much beyond his native Massachusetts. But because of the selfless use to which he put the internet, regret at his death has been felt across the world.
Just stumbled on this at random today. An obituary on him I hadn't read before. Really well written. Still in awe of his legacy. He was a bicycling saint.