This document describes an interface for an abstract File I/O interface where web applications can interact with a file system, without any prior knowledge about the underlying filesystem. This interface can be used for e.g. an image preview before submitting a form or for saving a drawing from a canvas painting web application locally.
open the web
A recent lengthy discussion in the Interaction Design Association focused on the placement of actions in Web forms that span several Web pages. The quintessential question underlying this debate is: can an action which leads people to the previous step of a process be placed to the right of an action that leads users to the next step of a process?
yet another great article.