John Godley

PageView is a plugin that will display another web page inside the current post. This is achieved with the use of an 
iframe – an HTML tag that allows a webpage to be displayed inline with the current page.
To use:
<pre><code>[pageview url="http://urbangiraffe.com"]
</code></pre>
Optional arguments:
title = A title to show under the iframe 
desc = A description to show under the iframe 
width = Width of iframe, in px or % 
height = Height of iframe, in px or %
<h3>Documentation</h3>
Full documentation can be found on the <a href="http://urbangiraffe.com/plugins/pageview/" rel="nofollow ugc">Pageview</a> page.

PageView

Insert an iframe and display an external website directly in a post using just a shortcode.

flynsarmy

Allows the insertion of code to display an external webpage within an iframe. A WYSIWYG button is included to make adding the code easy.
See the ‘Other Notes’ tab for usage information.
<h3>Usage</h3>
The tag to insert the code is: 
 [iframe src=”http://yoururl.com” width=”100%” height=”600″]
You can use any attribute and it will work.

IFrame Shortcode

Allows the insertion of code to display an external webpage within an iframe.

Requires PHP 5.3 or later.

PageView vs IFrame Shortcode