DEJAN

Interactive posts are one of the greatest features within Google+, but rarely utilised due to implementation complexity. The aim of this plugin is to help webmasters take the first steps towards implementation of interactive posts. For more information, examples, installation instructions and configuration visit: http://dejanseo.com.au/wordpress-plugin-google-interactive-posts/

Google+ Interactive Posts

Enable Google+ interactive posts on your website in a few simple steps.

TouchCast

The TouchCast Embed Plugin allows WordPress sites to easily embed their touchcast videos in any post with the URL of their video.
This beta version allows you to:
<ul>
<li>
Embed a touchcast video in your blog post
OR
</li>
<li>
Embed a whole touchcast channel in your blog post
</li>
</ul>
Visit http://v1.touchcast.com/wordpress for more information. 
Use of the TouchCast Embed Plugin is governed by TouchCast’s Terms of Service and Privacy Policy.

TouchCast Embed Plugin (beta)

The TouchCast Embed Plugin allows WordPress sites to easily embed their touchcast videos in any post with the URL of their video.

Google+ Interactive Posts vs TouchCast Embed Plugin (beta)