I've literally read several articles today (mostly via HN) from which I have garnered enough value to pay at least $1 to each author. And I'd gladly pay it, as long as it's not a subscription and I don't have to enter my card details all over the place, or have my money charged as a large number of individual transactions.
Especially for micropayments. If I google and find a minor 1-liner that taught me something I'd deposit $0.10 or $0.25. If it was something I was struggling with for a long time - like some arcane tar or mt command to use my tape backup drive, I'd give at least a few $. These amounts add up quickly, and encourage a much more wholesome form of publishing.
