The United States of America

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Maintenance

Trees

• http://selectree.calpoly.edu

• http://www.isa-arbor.com/home.asp

• http://www.canopy.org -- Palo Alto's tree site

• http://www.treesaregood.com/

• http://www.na.fs.fed.us/spfo/pubs/howtos/ht_prune/approaches.htm -- how to prune a tree

• http://users.rcn.com/bobw.enteract/UKSubsidence2.2.html

• Evapotranspiration (ET) Explained

• http://www.cheyennetrees.com/faq.html

• http://www.ci.redding.ca.us/devserv/pdfs/planning/treeplan.pdf

Irrigation

• http://www.agrifim.com
• Rain Bird

Landscaping and Gardens

• USDA Plant Hardiness Zone Map

• GardenWeb

Home Improvement

• http://www.homedepot.com

• http://www.lowes.com

• http://www.blinds.com