Sorry if these links have been posted before but the first one has a wonderful spread of quotes about our practice.
http://shoresofzen.com/index_htm_fil...Shikantaza.pdf

From academia
http://global.sotozen-net.or.jp/eng/...ey_terms01.pdf

From Upaya
http://www.upaya.org/uploads/pdfs/sh...nreadergen.pdf

Of course it is all here too!

Gassho
Heisoku.