Allan Block's Website - This site has great installation information
Allan Block Courtyard Projects
Direct Link to AB Courtyard DIY Weekend Projects & Videos
Boral Cultured Stone
Make your color selections and learn the basic installation techniques for Cultured Stone by Boral
NCMA - National Concrete Masonry Association
Selkirk Stone is a Locally Manufactured Stone Supplier. They have a large selection of realistic looking stone. Check their website for products and ideas.