Here are a few vendors where I currently have images displayed or do business with:

Adobe Western Art Gallery, Fort Worth, Texas
National Audubon Society
Sage Financial Strategies (Littleton, Colorado)
Aspen Square Hotel (Aspen, Colorado)
Trinity Terrace (Fort Worth, Texas)
Texas Trading Post
Austin Eye
Chilis - Bee Cave, Texas
Furniture in the Raw
The Nest - Artistic Gallery in Winter Park, Colorado
American Art Resources
Somerset Fine Art
Laurelwood Condominiums in Snowmass Village, Colorado

Here are some of my favorite places for information:
This is a sun and moon calculator - for rising and setting times around the world. I use this to find the best light and also know the moon phases.
A great resource for Texas wildflower information
Another resource for wildflower sightings
A forum for Texas and southwest area photographers

Here are some of the folks I work with or have worked with in the past:

Kruger Carson PLLC
Price Wealth Management
Rain Minns Law Firm
The Austonian
The Springs Condominiums
City of Austin
The Hyatt on Ladybird Lake
Dwyer Murphy Calvert LLP
Country Magazine
Hill Country Alliance
360 Condos in downtown Austin
The Milago condominiums in downtown Austin

Here are some of my other websites, as well:

Images from Austin - Images from all over Austin
My Site for Texas Wildflowers - Images of Texas Wildflowers, Texas Bluebonnets, and Longhorns and Horses in Texas Wildflowers
Images from Texas

Here are my blog sites:

My General Photography Blog
My Texas Wildflower and Texas Bluebonnets Blog - All about my adventures tracking down Texas Wildflowers and field of Bluebonnets