Poyomi, a photobook creation and printing service, story of using CouchDB:
Photo storage duties are handled by CouchDB, a NoSQL Key-Value database with a HTTP REST interface. Everything is stored as a JSON document, with one very useful feature that we exploit fully: binary attachments. Each photo is stored as a single document with multiple image attachments – the original photo and various thumbnails. No more scattered files all across the filesystem, everything is kept together!
Plus you could serve them directly from CouchDB if needed.
A diagram of their architecture:
Added to Powered by NoSQL.
Original title and link: CouchDB Case Study: Poyomi’s architecture where.NET meets NoSQL and AMQP (NoSQL databases © myNoSQL)