Radiant Doors by Michael Swanwick. Swanwick had the misfortune to have two stories as runners-up in the short story category. A repressive regime in the future is sending refugees back in time through radiant doors. Struggling to face the flood of traumatised refugees, a glimmer of hope suggests that maybe the future can be prevented.
Gary K. Wolfe's essay 'Unhidden Agendas, Unfinished Dialogues: 1999 in Science Fiction' suffers a little (especially in the Internet age) of being a bit late in reviewing the year in question.
Harry Harrison provides a commentary on his old mate The Grand Master Award: Brian W. Aldiss, which is followed by the 40+ year old short story Judas Danced. Brian W. Aldiss which stands the test of time.
Barry N. Malzberg similarly reviews Author Emeritus 2000: Daniel Keyes, which is followed by an extract from Daniel Keyes' Algernon, Charlie and I: A Writer's Journey, and extremely interesting look back on how Keyes wrote 'Flowers for Algernon'.
Some pomes finish off the collection, along with some information about the SFWA and past Nebula Award Winners.
All in all, and excellent volume - one which I would be happy to give to anyone who is sniffy about SF, confident that there is a lot of mature, high quality (science) fiction therein.