I was reading The Routledge Companion to Science Fiction in bed this afternoon, while feeling a bit unwell and testing out my brand new, very-first bifocals. I happened upon Paul Kincaid's essay, "Fiction since 1992." As Kincaid tells the tale:
The main tide of the genre during this period [since 1992], however, was the revived interest in hard sf and space opera, perhaps spurred by the monumental retrospective anthologies edited by David G. Hartwell and Kathryn Cramer (The Ascent of Wonder (1994), The Hard SF Renaissance (2002), The Space Opera Renaissance (2006)). (176-177)
The paragraph goes on to discuss the influence and profusion of Year's Best volumes. I think this goes into the next author bio I have to write!