My question is what is the concept behind microblogging versus just a regular blog? I understand that it's smaller posts, but I just don't seem to grasp the concept.
Well, not everyone has the time or the skills to sit down and write a lengthy blog post. Not that a blog has to be lengthy, but generally, you won't see blogs with a sentence or two. People who can't or don't want to keep such seriously lengthy ones may still want to keep some sort of a log online. That's where Twitter and the various microblogging platforms kick-in.