Jason Kottke, BloggerTwitter is the first thing on the web that I've been excited about in ages.
Eric Nuzum, Author of The Dead Travel FastIf you aren't familiar with Twitter, it is one of those things, like MySpace, that sounds totally ridiculous and stupid when you first hear about it. But once you start using it, you realize how much fun it is.
Nicholas Carr, Author and TechnologistTwitter is the telegraph system of Web 2.0.