jwenl

This plugin provides support for using oEmbed in your WordPress blog.
Rick media Example: 
[oembed:http://polldaddy.com/oembed?url=http://answers.polldaddy.com/poll/2431815/&format=xml] 
This will put the selected polldady poll on your blog
Photo example Flickr: 
[oembed:http://www.flickr.com/services/oembed/?url=http://www.flickr.com/photos/23886028@N04/3983995799/in/set-72157622398187791/] 
This will put a Flickr photo into your posting.
Video example Youtube: 
[oembed:http://www.youtube.com/oembed?url=http://www.youtube.com/watch?v=yvdbqcbRH50&format=json]

oEmbedder

This plugin provides support for using oEmbed in your Wordpress blog.

Dave Lavoie

EP4 Corporation

EP4 More Embeds adds support for more embedded content on your website. It makes use of WordPress <code>wp_oembed_add_provider</code> 
for providers supporting oEmbed, and <code>wp_embed_register_handler</code> for the other providers who still allow embedding 
content on other websites even though it’s not through the oEmbed feature.
At the moment, the following providers are supported:
<ul>
<li>Bandcamp</li>
<li>Box.com</li>
<li>Twitch.TV</li>
<li>VEVO</li>
</ul>

EP4 More Embeds

Support for more embedded content on your website. Current supported embeds are Bandcamp, Box.com, VEVO & Twitch.

oEmbedder vs EP4 More Embeds