What's the difference between Synchronous and Asynchronous polls?

You would use a synchronous poll when you want to control when participants move to the next question. You would use asynchronous when you want to allow participants to take the poll independently.

How do I integrate a BUZZ game into my eLearning?

To play a BUZZ game in an eLearning environment, simply create the game as you normally would, click play, and copy the link for 'independent play'.