While I'm not usually a huge fan of short story collections I couldn't pass up Wireless by Charles Stross. He's been one of my favourite sci-fi authors since I read his post-singularity novel, Singularity Sky.
In this collection we get to see Stross take on a number of different genres like the cold war era Missile Gap, the mind bending time travel Palimpsests, his net neutrality collaboration with Cory Doctorow called Unwirer and my personal favourite Down on the Farm. In Down on the Farm we get another mission from Bob Howard of The Laundry. The Laundry is a secret British organization that is a cross between MI-6/computer hackers/warlocks.
All of the stories in this book are quite enjoyable and I recommend this book as a buy to all sci-fi lovers.