You can't release new social software these days without an immediate pile-on of commentary. So the (as Clay notes, viral) release of LinkedIn yesterday has already spurred some interesting discussion.

• Adam Greenfield weighs in on LinkedIn vs Friendster, and the potential (which he thinks is still unrealized) for these types of systems
• But Anne Galloway disagrees about that potential
• The conversation at Joi Ito's site continues, with some interesting viewpoints--most of the defenders appear to be people who know the developer, and knew about the system before it launched, while most of the naysayers are looking at it without any foreknowledge...
• Marc Canter is enthusiastic. But even his invitation to me implied he was trying to find ways to use the system that the developers hadn't intended.
• Frank Boosman likes its polish and sees great potential
• And I've got a longer discussion of my impressions of the system on my own blog.

I'm sure there'll be more, but that's a pretty good start. I still find it amazing to see how quickly a web of public, participatory discussion and debate can form with blogs as the medium.