It's not a solution for micropayments, in the vein that Radiohead's pay-what-you-want model isn't a solution for the music industry selling CDs. But for casual

It's not a solution for micropayments, in the vein that Radiohead's pay-what-you-want model isn't a solution for the music industry selling CDs. But for casual content creators, the ability to buy a beer for a particularly well-written article or comic, this is excellent. It's a middle ground between ads and micropayments--better than ads, because you know people are rewarding you directly for enjoying your content, and you're not forcing advertising on them. Plus, I think it can be argued that the better your output--the more it's linked to--the more you'll get paid. At least that much is predictable.