For years, book authors have used the Internet to publicize their work and to keep in touch with readers. Several … are now experimenting with maintaining blogs while still in the act of writing their books.

"It is very satisfying to write something and get an immediate response to it," said Mr. Battelle, who calculated that last year he wrote 74,000 words for his book, and 125,000 words on his blog. "It is less satisfying to write a chapter and let it sit on the shelf for six months."

…Authors who have experimented with blogging in this way - and there are still only a handful - say they hope to create a sense of community around their work and to keep fans informed when a new book is percolating. The novelist Aaron Hamburger used his blog to write about research techniques he employed to set his coming book in Berlin (www.aaronhamburger.com). Poppy Z. Brite, another novelist, has written about her characters on her blog as though they have a life of their own, not just the one springing from her imagination (www.livejournal.com/users/docbrite).

…Michael Cader, who is the editor of two industry publications, Publishers Marketplace and Publishers Lunch, said he believed that, based on the limited examples, authors could build a much bigger audience for their work through blogging.