Amazon.com Offers On-Demand Computing -- Glenn's article about Amazon.com's EC2 service brings up questions of Xserve interoperability. 
Geoff Duncan moving on -- Readers comment about last week's article by Geoff Duncan, who now assumes the mantle of TidBITS Editor at Large, and dig into questions of computer advancement. 
Postscript question -- Can an older HP laser printer's PostScript Level 2 emulation handle PDFs and other documents created by Mac OS X? 
Designing and printing Coffee Table Books in iPhoto -- A photographer wants to print books from iPhoto, but has concerns about the final print quality. What can he do to get the best results?