To insert a "View as a web page" link into your e-mail, you simply insert this code into the body of your HTML message:
Click <A HREF="http://x.jngo1.net/w.z?***uniqueid****">here</a> to view this e-mail as a web page.
Alternatively, if you're using the Enhanced HTML Editor, you can simply click the "Web" button to dynamically insert a "View as a web page" link wherever the cursor is. To learn more about personalization syntax in your e-mail messages, see this tutorial.