title: Using Amazon S3 for image storage. Where should I store my Metadata?
body: <p><strong>Background:</strong>
  I am new to cloud computing and large scale DB design. I have to find a storage facility for a large number of images that have a lot of metadata associated with each image. I am going to use Amazon S3 to store my image files and I need a cloud based database solution to store metadata and reference to each image. I need this so I can query a DB for customer request and pull images and their metadata and insert new data as well via some web and mobile application interface I will create.</p>
  
  <p><strong>Research done:</strong>
  I found the S3 is a raw data storage solution. I found many good discussions here on bucket naming conventions and I see many people use S3 as binary storage and use a DB for metadata. I've done some research on mongoDB, dynamoDB, and other database solutions.</p>
  
  <p><strong>Question:</strong>
  I need a direction of where I can find an inexpensive and reliable Database that will work well with Amazon S3, that is ideal for large amount of metadata storage.</p>