This piece in The Washington Post is not super-illuminating, but it's something.
I continue to encourage people who attended the Reason Rally to post their impressions in the comments. Yes, if you were there ... this means you!
Daniel Fincke is also asking for impressions from his readers.
Edit: If you hadn't noticed it, Dave Ricks has a longish report on one of the earlier threads. I'll actually copy and paste it into the comments here (I'm presuming that's okay with you, Dave?).