I’m not a huge aviation buff, but growing up around the Air Force it’s hard not to at least have some passing interest in the topic. Apropos of that, Michael Jennings has a long, informative post about the Boeing 757, which will no longer be produced after 2004.
Also at TransportBlog, Patrick Crozier has a post that attempts to compare the safety records of various jet aircraft. As he notes, the figures are “a bit dodgy because there will be quite a few of the more modern planes that haven't crashed yet.” Or, in econometrician-speak, there’s right-censoring of the survival data. Nonetheless the figures suggest aircraft are getting safer over time, as we’d probably expect (due in part to better materials, more rigorous safety inspections, and improved automation of aircraft).