brajesh

Embed Iframe is a plugin that will let you embed iframe – an HTML tag that allows a webpage to be displayed inline with the current page, in a WordPress post. Although an iframe can lead to a complicated website, it can be very effective when used appropriately.
<h3>Usage</h3>
Use following tag to insert another page in post using iframe
<pre><code>[iframe url width height]
</code></pre>
e.g.
<pre><code>[iframe http://www.example.com 400 500]
</code></pre>

Embed Iframe

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

straps

Strx Youtube Embed Widget lets you embed youtube videos on sidebars enabled sites simply pasting Youtube URLs.
See also: <a href="http://www.strx.it/2010/11/youtube-wordpress-widget/" rel="nofollow ugc">Official Blog Post</a>.

Strx Youtube Embed Widget

Strx Youtube Embed Widget lets you embed youtube videos on sidebars enabled sites simply pasting Youtube URLs

Embed Iframe vs Strx Youtube Embed Widget