David Hartwell and Kathryn Cramer have assembled 26 science fiction stories from those published in 2006. As usual, the introductions to each story contain author bios, web sites, brief descriptions of other works, and a non-spoiler characterization of the story in this collection. It is a good, but not a great collection. Three of the stories also appear in Gardner Dozois's The Year's Best Science Fiction: Twenty-Fourth Annual Collection.
My five favorites:
Mary Rosenblum's "Home Movies" introduces a member of one of the world's newest professions, a trained rememberer who stores experiences to be sold and lost completely to her employer. Until she experiences some things worth remembering.
Alastair Reynolds' "Tiger, Burning" sends an investigator to solve a mystery in a different brane where physics is different, but human motivation is much the same. The guilty party is certain to be executed.
Michael Swanwick's "Tin Marsh" comes off a little like The Treasure of the Sierra Madre. Two prospectors get on each other's nerves while searching for metal deposits on Venus.
In Robert Reed's "Rwanda" a father and son discuss a failed alien invasion of Earth and its aftermath. Some humans found opportunities to be merciful.
In Charlie Rosenkrantz's "Preemption" an fleet of alien assassins arrives to scour the earth of an ambitious species before it can become a galactic threat.
This isn't the best of the Best of SF series, but it is worth reading and provides a measure of enjoyment. I wonder why this book and the Year's Best SF 13 are the only recent books in the series that are not available on the Kindle? It makes reading them surreptitiously a lot more challenging.