Contour
One "is no longer maintaining a public online presence" (as if you could ever really be "present" on the Web). The other blogs away like it's going out of style (and some can only hope). I'm referring here to Michael Joyce and Mark Bernstein, two of the most instrumental figures in what Joyce himself once described as the "earnest, even heroic" project of bringing together the "disparate concerns of scientist and humanist - without sacrificing their particularity".
David Ciccoricco offers a detailed analysis of the notion of contour in hypertext in Contour of a Contour.