We are developing a website where there will be two distinct types of content: galleries and photos.
It makes little sense to use URL paths like /gallery/photo as some photos can appear in more than one gallery (and duplication of content is bad); so the current logic is to have a single depth on the site (/photo1, /photo2, /photo3, /gallery1, etc).
Will this impact upon SEO as the number of single depth pages increases?, is it better for Search Engines in general to see a more RESTful interface (/galleries/gallery, /photos/photo1, etc)?, or is there a better way to handle this?
P.S.: The photos will have a landing page of their own with deep textual content (as will the galleries).