Neil Gaimen is an author who has written The Sandman, Coraline, Stardust etc. Twitter as I understand it is basically the same as status updates on facebook. You just put in whatever your thoughts are at that moment. Whatever you're doing, whoever you're talking to etc. You can follow people you know, and they can follow you. You can also reply back and forth I guess. So basically, CastalianSpring has had a very brief conversation with my favorite author.