I make an annual photobook of every day life, special events, adventures, etc. I use a landscape orientation and have my books printed by Blurb. The major advantage for me in using Blurb is that the book can have up to 440 pages. Some years I've come close to the max number of pages. My favorite size is the 8 X 10. I used that size in portrait orientation for a photobook of my daughter's engagement. For whatever reason, I found it really difficult to scrap pages in a portrait orientation. I found that Scrapgirl layout templates are easy to adapt to an 8 X 10 landscape format also.