You can highlight the embedded text in this video; essentially making 1000's of custom videos and sending them out. I haven't seen anything like this before. I wonder if you can embed clickable links in these videos as well.

http://www.cnnbcvideo.com/index.html?nid=YhpKNLY182zkUb3JmzrRIjYxNzUzNjQ-&referred_by=12820659-vmw__ux