Pros and Cons of a separate image server (e.g. images.mydomain.com)?

Question

We have several images and PDF documents that are available via our website. These images and documents are stored in source control and are copied content on deployment. We

Answer 1

Another thing not yet mentioned is that you can use different web servers to serve different sorts of content. For example, your static content could be served via lighttpd or nginx while still serving your dynamic content off Apache.