Fixed gear

lioupaslira

Fixed wheel
The Fixed gear gallery: thousands of pictures of people's fixeds and a load of other useful stuff too.
My Fixed Gear: The fixed gear and single speed rating gallery.

The Power of one by Guy Andrews on RoadcyclingUK.
Converting a Rear Hub for a Fixed-Gear Wheel
63xc.com The off-road fixed gear site with loads of useful articles
Sprocket and gearing choice (Bikereader forum thread)
Chainset and hub choice (Bikereader forum thread)
Introduction to fixed cycling technique by Gregg Goode
Good and bad cogs on 63xc.com
Surly Spew: a load of articles on riding single / fixed off and on road
Getting fixed by Myra VanInWegen
Fixed FAQ
Pumaville Fixed Gear 101 book Even Puma is getting into fixed now! This booklet describes the street and courier aspects of fixed more than the kind of fixed riding I do. It's got some useful stuff though.
How to secure a rear sprocket without a chainwhip. The article mentions there's no need for a lockring using this method. I would use a lockring myself.
Calculating rpm given speed and wheel size
Does it make you go faster? the view of a personal trainer
Magic gear calculator Chart that gives possible chainring and cog combinations for a given distance (center of BB to rear axle)

hub jub: carry specialist fixed gear, mostly hubs, also EAI cogs. Will at Hub Jub is a really friendly character who gave me loads of pointers and advice when I built my first fixed. Recommended.
Alans BMX carries a range of freewheel sprockets (screw on to track hub)
JE James cycles also carry a range of freewheel sprockets (AC racing and Shimano)
Byer cycles are not an online shop, they are mail order. They have an online brochure with some cheaper fixed components: chainsets, sprockets, hubs.
John's bikes in Bath, my LBS. Very helpful and friendly staff. They carry some track stuff and can get more on order.
Park tools the best cycling tools out there. They also have some very good maintenance articles.
Sheldon Brown Sheldon again. He knows more than most about fixed/single. A good first place to find out about things. He has a good article about gear ratios (including crank length], about singlespeed conversions, fixed gear conversions and [ http://www.sheldonbrown.com/fixed/ more]
Solitude cycles hand built fixed and single speed frames
Oxford Cycle Workshop specialists in fixed gear and singlespeed conversions using classic frames and recycled parts.