I ate some of mine.
http://www.atroxen.com/gallery2/main.php/view/jeremy/Sake%20Brewing/DSCF3813.JPG
Until I find one specific rule or trick to reusing the lees I do not plan on using them.
This is the most advanced sake recipe I found but I have not read all of it.
http://www.designerinlight.com/
I just finished a round of job interviews and I am about to brew again. I have not brewed in months.
The Book of Sake: A Connoisseurs Guide
by Philip Harper (Author), Haruo Matsuzaki (Author)
I looked at this book in a store and I thought the brewing section was good enough to buy the book. However I want to buy the book cheaper so I would get it from amazon.