A while ago, Neil Gaiman's American Gods was made available as a free download for a short period. Now his Neverwhere has been made available as a free download - again for a short period. Neverwhere was the first Gaiman novel I read and I enjoyed it hugely - though I never looked at the London Underground in the same way ever again! Gaiman's reflections on the free downloads are also worth having a look at, particularly if you have an interest in how fiction is produced and marketed today.
As a side note, some of you know that I have an interest in knitting. I was delighted to discover The Lord of the Rings sock club. Just the club for those who think hobbits need socks.