How about this list for a start? 1. If you are doing multi lingual site, you can store your multiple language content in a single document instead of futzing a

How about this list for a start? 1. If you are doing multi lingual site, you can store your multiple language content in a single document instead of futzing around with {lang, content} tables 2. If you want to do custom form/content, it is trivial to do it in a document database instead of relying on key,attribute tables. 3. Just store your theme in a single document, which can include various html templates, css, etc. To export or import a theme is also easy - just stuff the whole document into the db. 4. If you want to add plugins to enhance the capability of your blog/cms, they can have their own nested document inside their target document. Everything is contained.