Neil Gaiman recently had a poll to determine which of his books HarperCollins would make available to read online. I was happy to hear that my favorite book of all time, American Gods, won. Yay!!
The Guardian has an article about why HarperCollins is doing this that I found somewhat interesting. This is kind of a nice promotional tool to encourage readers to check out a book and then maybe come back and buy it if they like it. I do think that the reader interface that HarperCollins is using could use some work. The inability to jump to specific pages and the general lack of variable display options makes it uncomfortable to read such a long book on your computer. This may be intentional on HarperCollins' part so that you are basically forced to buy the book to get a comfortable reading experience, but they should really rethink that model. If you're going to give something away for free, then don't also attach uncomfortable shackles to it.
Anyway, here's a link to the book so you can check it out for yourself: