Nike have created a large series of mixes and coaching sessions which are available through the iTunes music store. I've created a directory of all these for you to browse easily from your computer or iPhone, without having to navigate the store.
Nike+ Original Runs
CASSIUSPLAY: Nike+ Original Run After working on projects with artists including Daft Punk & Air, Cassius have turned their hand to creating a uniquely engineered musical experience for you to run to.View in iTunes...
Drive - Nike+ Original RunThey've blown your mind in concert and on the dance floor. Now, The Crystal Method electrifies your running routine with an original album that delivers the ultimate runners high.View in iTunes...
Nike+ Coaching Runs
Anywhere Anytime: Outdoor ConditioningWho says you need to get to the gym for a great workout? This 45 minute cardio and muscle conditioning workout can be practiced, anywhere, anytime you are outdoors.View in iTunes...
Treadmill Training: Hill Repeats 1Jay Blahnik helps you push yourself through a series of increasingly steep intervals, telling you when to incline on your treadmill and when to take it down a notch.View in iTunes...
Build Your Strength 1Marathon champion Alberto Salazar gets you going in this strength summoning workout, guiding you through swift hill repeats with a supportive coaching style.View in iTunes...
Build Your Strength 2Seasoned coach Alberto Salazar guides you through a series of 6 hill repeats, each a minute long with recovery and warm up time, with a classic funk soundtrack.View in iTunes...
Treadmill Training: Mixed Terrain 1Treadmills do actually offer a world of variety. Jay Blahnik gives a workout that includes hill climbs, flats and speed work, with varied terrain and escalating intensity.View in iTunes...
Improve Your Endurance 1Endurance is the key to comfortable running - join Alberto Salazar talking you through a 40 minute workout designed to help you run further, longer and with less effort.View in iTunes...
Fearless: Zoom Jasari + Mixed RunInspired by the legendary Nike Jasari track spike shoe, this mix offers a thunderous soundtrack from The Hives, The Fratellis and Maroon 5, to take you from warm up to cooldown.View in iTunes...
Serena Williams Interval RunA custom made work out from Serena Williams, designed to improve your running speed, build endurance, and give you a boost when you most need it by focusing on interval training.View in iTunes...
Serena Williams: Spontaneous SpeedSerena guides you through a workout consisting of timed stretches of fast paced running followed by a chance to recover - but you won't know what's coming or when.View in iTunes...
Joan Benoit Samuelson: Women's Marathon Mix 1This iconic marathoner shares the strategies she's learned throughout her storied career, coaching you through a typical training run including warm-up and cool-down.View in iTunes...
Joan Benoit Samuelson: Women's Marathon Mix 2More tips from this champion marathoner, encouraging you to run further, for longer. Joan clues you in to eating habits, body alignment and when and why to add bursts of speed.View in iTunes...
Asafa Powell: Train for SpeedAsafa is your personal coach on a 30 minute run with four high speed intervals of descending length, training specific muscle groups to build speed and endurance.View in iTunes...
I'm still adding to the directory, so the list is not quite complete. More to come!