Editing of posted content is a very common task in web sites. It's usually implemented by offering an edit link next to content. When clicked, this link takes the user to a form located on another page where content can be edited. When the user submits the form, they are redirected back to the content page.

Imagine, on the other hand, that you could edit content without navigating away from the content page. When you click edit, the content is replaced with a form. When you submit the form, it disappears and the updated content appears in its place. Everything happens on the same page; edit form rendering and submission are done using JavaScript and Ajax. Wouldn't such a workflow be more intuitive and responsive?

The technique described above is called in-place editing. It is now finding its way into web applications and becoming more common. We will implement this feature in our application by letting the user edit their bookmarks in place on the user page.

Since...