I accidentally saved Agnostic's 450 ppm post before giving it a filename, which resulted in an extra "http://www.skepticalscience.com" getting magically inserted in front of every linked URL.  I tried to get rid of them by editing the links and the html (twice), but they won't go away.  Can someone else get rid of them?

Fixed links.  Checked twice, working now (I'm sure I didn't do anything differently than you Dana).

Did you try closing, re-opening and then editing the post?

Yeah I just went into Admin Edit, deleted the extra URLs, and saved it.  But then when I went back to the post and checked, the extra URLs were still there.  Very strange.  Anyway, thanks for fixing it.