This is EXACTLY where you will find everything - short version.

We are still fussing over this one. 

These lists break out to: (if the businesses aren't linked yet, they will be soon)
From Airport to Gallatin Canyon
From Gallatin Canyon to Big Sky turn off on Hwy 191
Beyond Big Sky turn off on Hwy 191
From Big Sky turn off to The Meadow Village Center
The Town Center
Westfork Meadows
Lone Mountain Ranch
From Lone Mountain Ranch to Big Sky Ski Resort
Moonlight Basin

From Airport to Gallatin Canyon (incl. Gallatin Gateway)
Albertson's
Rosauer's (takes a detour)
Mama mac's
Pottery and Espresso
Broken Hart Ranch
Gallatin Gateway Inn and the Porterhouse Restaurant

From Gallatin Canyon to the Big Sky Spur/64/Lone Mountain Trail turn off on Hwy 191:
Probably alot of cool wildlife and certainly some great scenery
At mile 64 is Montana Whitewater Raft Co.
The Bighorn Center and Mountain Haven Salon
Bugaboo Cafe
Moosely Montana
MailBoxes, etc.

Beyond Big Sky turn off on Hwy 191:
On the right:
East Slope Outdoors
Mountain Mercantile Ace Hardware

On the left:
The Big Sky Weekly
A Cut Above
Gallatin River Guides

On the right:
Geyser Whitewater
Buck's T4

On the left:
Half Moon Saloon

On the right:
Jake's Horses

On the left:
320 Ranch
Rainbow Ranch

On the right:
Corral

From Big Sky Spur Road/64/Lone Mountain Trail turnoff from Hwy 191
On the left is Conoco and inside there is Slider's Deli
Further up on the left is American West Bank??
The next settlement on the right is The Meadow Village Center:
Horse of a Different Color
Big Sky Post Office
Lone Peak Brewery
Gallatin Art Gallery
Country Market
Bank??
Big Sky Furniture
Bijoux Jewelry
Jasper's Pizza
Big Sky Floral and Coffee Shop
Willow Boutique
Wildflower Antiques
La Luna
Big Sky Chapel
Big Sky Golf Course
Crail Ranch

Town Center:
Wokkee Mountain
Huckleberry Cafe
Grizzly Outfitters
The Root
The Cave Spirits and Gifts
Bighorn Boutique
Choppers
Rocky Mountain Rugs
Hungry Moose Market

Westfork Meadow:
Gallatin Alpine Sports and Bentley Bodies on the right.
Turn left at River Rock Lodge
And on the right is the blue shopping center with
Allgood's
Hiking in Heels
Lotus Pad
Blue Moon Bakery
Movie Rentals
Consignment Shop??

Other side of the parking lot is:
The Wrap Shack
Milkie's
Trailhead Pizza
By Word of Mouth