Interesting new tool that lets you overlay and tag people, etc. in a video. There are interesting (and some scary) applications for this. This is one of those sites you'll want to play with. The neat thing is that you can add tags to objects as well. This could have some fascinating applications for flipping the classroom.
"The tool is free to use, so everything you saw in the video example I sent would be possible when you sign in to wireWAX studio. The only limitation for a free user is the size of the overlay is limited to 200px by 200px, but apart from that we hope there is plenty of scope to do as much creative stuff as you like, from using the overlay boxes or the inbuilt widgets (Flickr, Instagram, Youtube, Facebok, Twitter etc).