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Non-libertarians, please start here first.
Here's an index (no particular order) of libertarian blogs that have commented on the Paul crackup and what it means for the libertarian community (not just the racial aspects or the political fallout). If I'm missing any, please send them and I'll add them.
Me, of course
East Coast Libertarian
Tom G. Palmer
several posts at Wendy McElroy's site, particularly this from Brad R
Just A Girl in Shorts
Joel Gots Freedumb
Update: Remember, I'm not interested in people defending Paul here, let alone people defending the paleo-cons. I'm interested in discussions of how the libertarian community is going to deal with this problem and stop it from happening in the future, as explained in my post.