Twitter vs BlackBorad, in-class disscusion

Post a blog entry with the above title. How does a Twitter discussion compare to a BlackBoard Discussion? To an in-class discussion?

For the twitter, all users have the limit number of words within 140 characters to public, as for on the blackboard, the using of the tool such as the Microsoft word document that allow for no limit word the post.Twitter have the title @ function and notification for all your followers, also there is a special tool about grouping peoples who or what they can see. The ideas what you public you can change whatever you wanted and deleted. In the twitter the words you public that everyone in the world can see and also have the tool to translate that different language speaker will have the idea what you want to explain.

However in the in-class discussion what you said may be record for other people and the blackboard didn’t have the convenience function about @ people for the idea who want you to direct to. But as we all know,blackboard is the main platform to letting the college student to do their job or homework. the teacher more prefer using this way base on the record of the work is more clear.