Soil vs. Dirt: What's the Difference?
Fill Dirt vs. Topsoil: Differences and Which to Use
Here's the DIRT on TOP SOIL in Maryland - Westminster Lawn Landscape Supply Yards
Potting Soil, Fill Dirt and Topsoil-What is the Difference - Southern Landscaping Materials
Fill dirt vs Topsoil: What to Choose for Landscaping?
What's the Average Cost for Topsoil, Fill Dirt, or Sand?
Fill Dirt vs Topsoil - Dirt Connections
Substrate 101 - Potting Soil
Pulverized Topsoil, Indianapolis Bulk Soil
Choose the Best for Your Project
Topsoil, Mulch, & Compost: What's the Difference and How to Use Them
Sand, Gravel, Soil Dredging throughout Georgia and Atlanta
1. Soils & Plant Nutrients NC State Extension Publications
Must Reads: The one gardening mistake you can't afford to make - Los Angeles Times
FAQ: What Is Fill Dirt For? - Southern Landscaping Materials