I get mine printed in an 11"x11" binded book by
Inkubook. They have AWESOME quality, and they're prices aren't that bad, really. You can get 120 pages (of the 11"x11") for $70. Pretty reasonable to me, especially since their print quality is the best I've seen so far!
I've had a book printed by Artscow a few months back, and was totally dissapointed after using Inkubook... my Artscow book went into the garbage (it was a free trial one anyway so I didn't waste any money) and I reprinted the same layouts with Inkubook. The Artscow book pages were way too saturated in color- the greens and blue-greens were way too bright and the faces in every single page (except b&w photos of course!) looked orange. There was also a terrible white border (very uneven at that) on every page though I followed the size recommendations that was supposed to prevent odd borders. So I definitely don't recommend Artscow at all- go with Inkubook if you print in a bound-book. (I don't work for them or anything, lol!
)