Andr&eacute; Boekhorst

The Live Video Annotation plugin allows you to add timed footnotes to a YouTube video while you are watching the video. Visitors can see these notes later while watching the video. It’s really easy to use and the interface is designed as if you were chatting away.
It can be used for:
<ul>
<li>Add notes to video lectures.</li>
<li>Give translations to a video.</li>
<li>Add bookmarks to a video.</li>
<li>Easily add links to external resources mentioned in a video.</li>
<li>Create your own Pop-Up Video.</li>
<li>Whatever you can think of.</li>
</ul>
More Information on <a href="http://www.andreboekhorst.nl/wordpress/live-video-annotation-plugin/" title="Andre Boekhorst WordPress Amsterdam" rel="nofollow ugc">the authors website</a>.

Live Video Annotation

The Live Video Annotation plugin allows you to add timed footnotes to a YouTube video. Visitors can see these notes later while watching the video.

Chris Roberts

Annie provides comprehensive annotation options, including footnotes and highlighting. If Tippy is installed, footnotes can be displayed inline using tooltips. Also, footnotes are placed at the end of the post. For highlighting, you are able to use default highlighting styles or define your own.

Annie

Provides comprehensive annotation tools for WordPress posts.

Live Video Annotation vs Annie