Roof Genius
Roof calculator, calculates a detail list of roof materials, and a complete estimate. Two ways to determine roof pitch. Offers tips and how to's on roofing. [Windows 95/98/2000/Me/XP/NT]
http://roofgenius.com/

Huntington Botanical Gardens
San Marino, California, USA. The gardens, on 150 acres, include 10 specialized gardens, several theme areas, and collections from other countries cultivated to share with others.
http://www.huntington.org/BotanicalDiv/HEHBotanicalHome.html

Glass Gardens
Elegant Greenhouses, Conservatories, Solariums, Pool Enclosures, Hobby Greenhouses, Commercial Greenhouses, Retail Greenhouses, Greenhouse Suuplies and Accessories
http://www.glassgardens.net/

Decra Roof Systems:
Roof coverings using lightweight roof tiles for all roofs down to a ten degree pitch. UK.
http://www.decra.co.uk/

Roof Products, Inc.
Manufacture prefabricated roof curbs and other roof accessories. Products include expansion joints, equipment supports, adapters, and ice deflectors.
http://www.rpicurbs.com/

Roof Coatings Manufacturers Association
Roof Coatings Manufacturers Association (RCMA) represents manufacturers of cold-applied roof coatings and cements. RCMA’s site offers product information and the latest roof coating news.
http://www.roofcoatings.org/

Fibreglass Roof Decking
Roof Decking From Dura Composites Ltd
http://www.roofdecking.co.uk

Royal Horticultural Society Gardens
The index page to all the information on gardens - including RHS gardens. As well as the beautiful RHS Gardens at Wisley, Rosemoor, Hyde Hall and Harlow Carr, RHS members have free access to a wide range of outstanding and inspirational gardens around Britain and in France.
http://www.rhs.org.uk/gardens/

American Hydrotech, Inc.
Hydrotech’s Green Roof, the Garden Roof Assembly is the latest innovation in roofing/waterproofing using MM6125 and 40+ years of successful installations around the world.
http://www.hydrotechusa.com/

The Public Gardens of Royal Roads University
History of the gardens and plant collection database. Victoria, British Columbia, Canada.
http://www.royalroads.ca/channels/about+rru/campus+information/grounds+and+gardens/default.htm