This site has a number of online books related to landscaping and building outdoor structures...
http://handbooks.btcv.org.uk/handbooks/index
The book titles are...
Local Action
Sand Dunes
Hedging
Toolcare
The Urban Handbook
Dry Stone Walling
Footpaths
Waterways & Wetlands
Fencing
Tree Planting & Aftercare
Woodlands
Health & Safety Overview
How & Why
Practical Conservation
Thanks for the info Bart, the dry stone walling is interesting-- may even motivate me to give it a try. My ground is about 1/3 rocks to big rocks.
Another site if interest is www.freetreesandplants.com. The plants are (obviously) free, and the shipping costs benefit the handicapped.