Annotate Videos!

Okay, annotating content created by other people is nothing new and we do it all the time, for example:

1. We use track changes in MS Word or Google Docs for document edits or revisions.
2. There are dozens of apps for annotating photos on tablets, for example Skitch.
3. We can annotate PDFs on our tablets using iAnnotate or PDF Expert as grading tools.
4. We can even annotate PDFs and other online course materials collaboratively using MITs Nota Bene.

But, I always wanted a way to annotate YouTube videos, for example to add questions, provide context, or offer additional explanations. Well, try Vidbolt or VideoANT! ProfHacker has a review of Vidbolt and Jonathan Senchyne explains how he uses Vidbolt in teaching.

http://blog.lib.umn.edu/tel/blog/2012/03/video-ant-a-video-annotation-t.html