What is this style of animation called???

This thread is NOT about the message of this animation. i dont want to say if i agree or disagree with the ideas in the video, its simply the only example i could think of. if you want to argue about the video and the legitimacy of its contents, start another thread.

what is this style of animation called? with the words popping into different sizes, in different places, and moving around - sometimes forming pictures.

http://www.youtube.com/watch?v=haEmnTkPuZc

seriously you dont even have to watch the whole thing, the first 10 seconds are all the example you need to see the kind of animation im asking about.