Over the years, many authors have tried versions of the online donation model, with mixed results. But one specific genre of writers, speculative fiction, seems to be experiencing a moderate level of success.

Back in 2000, Stephen King became one of the first major authors to offer a book online using an "honor system" to solicit donations. The book was called "The Plant," and was based on a series of chapbooks King had sent around to his friends in the '80s. He placed the first chapter in various downloadable formats on his website, and downloaders were expected to donate $1 by mail or credit card. King said that as long as 75 percent of readers donated, he would continue to post new chapters.

According to news reports, the first few chapters either reached or nearly reached that 75 percent threshold, though the second chapter fell as low as 70 percent. Eventually, King raised the price to $2 per chapter. To compensate for this increase, he published more pages at a time. I was among the King fans who dutifully mailed in money each time I downloaded a new chap