Electronic Textual Editing, edited by Unsworth, O’Brien O’Keeffe, and Burnard, is now available online in a preprint (or “preview”) form. It has been marked up in TEI XML and is available through the tei-c.org site. Note the new cocooned look of the TEI site!
The Table of Contents has links to the preview copies of the chapters. I note, for example, a chapter by Dino Buzzetti and Jerome McGann on Critical Editing in a Digital Horizon which includes stuff from Buzzetti that I heard at the Brown conference where I heard Buzzetti and Renear on markup.