The difference with this site from ones I've used before (I've tried Shutterfly, Kulapix, and WalMart's photo book services) is that it makes it super easy to do a digital scrapbook style book, with loads of free "kits" that have full book layouts as well as all the patterns and embellishments you could desire. It's completely customizable with a drag and drop interface for both the layouts and your photos.
I found there was a bit of a learning curve (and you do need to install Microsoft's Silverlight if you don't already have it - also free, and available right there on the site from the Create page, it prompts you to install it), but overall I enjoyed the process. And you can't beat this deal:
a 99 cent photo book, including shipping!!
Use coupon code Z099BOOKK47EG
Expires Dec. 31, 2013 and limited to the first 20,000 orders. One per household.