This is great! The full text of Marti A Hearst’s Search User Interfaces book is available entirely for free online. The RRP is Â£30 and the book isn’t even due to be publicly available until September 30, 2009.
Caution: actual thought may be required when reading this book. It is an academic text, somewhat reminiscent of a PHD thesis literature review. Don’t expect any top-ten tips.