Hope these organisations and links help you as much as they help Pip.
Articles
The Family Seed Saving Handbook Click Here
Trowel Power: Sow your own or buy locally grown Click Here
Energy Decent: the opportunity to relocalise Click Here
A taste of the bush in the backyard Click Here
Garden Safe Greywater Guide Click Here
Compost information
Milkwood www.milkwood.net/content/category/5/17/50/
Soil Food Web www.soilfoodweb.com.au/
Compost for Soils www.compostforsoils.com.au/
Bokashi www.bokashi.com.au/
Food for Plants
Seasol (natural liquid fertiliser) www.seasol.com.au
Weed Teas www.abc.net.au/gardening/stories/s2267268.htm
Compost tea www.abc.net.au/gardening/stories/s2002063.htm
Dynamic accumulators (useful plants and weeds) www.oregonbd.org/Class/accum.htm
Sustainable eating and sustainable living
Yu Food and Lifestyle www.yu.net.au
Gardening Information
Sustainable Gardening Australia www.sgaonline.org.au/
No Dig www.no-dig-vegetablegarden.com
ABC Gardening Australia www.abc.net.au/gardening
Companion planting www.no-dig-vegetablegarden.com/companion-planting.html
Natural Pest Control www.figtree.org.au
DIY Cold Frame www.youtube.com/watch?v=v6bWeYCV53A
www.savvygardener.com/Features/cold_frames-hotbeds.html
Organic Gardening www.organicgardening.com
Greywater
Grey Water Guerrillas www.greywaterguerrillas.com
Rain Water Harvesting for Drylands www.harvestingrainwater.com
Create an Oasis with Greywater http://oasisdesign.net/greywater/createanoasis/index.htm
Grey Water Products www.enviro-friendly.com/greywater-systems-australia.shtml
Drip Irrigation www.abc.net.au/gardening/stories/s1183013.htm
Planet Ark Products http://products.planetark.org/paproducts/greywater.cfm
Planet Ark Resources http://products.planetark.org/resources
Growing Supplies
Biodegradable Seedling Pots www.motherearthsgarden.com/cowpots-biodegradable-pots-for-seedlings
Organic Potting Mix www.debco.com.au/products/potting/OrganicMix.php
Bulleen Arts and Garden (certified organic compost in bulk) www.baag.com.au
International Aid and Development
Global Resource Alliance www.globalresourcealliance.org
Global Crop Diversity Trust www.croptrust.org/main/
Southern Cross Permaculture www.southerncrosspermaculture.com.au/aid-main.html
Other Interesting sites
Milkwood www.milkwood.net/
Guerilla Gardening www.guerrillagardening.org/
Energy Bulletin www.energybulletin.net/
Mount Alexander Sustainability Group http://masg.org.au
Ethical Shopping Guide www.ethical.org.au/guides/
Food Miles www.ceres.org.au/projects/foodmiles.html
Ecological Footprint Calculator www.epa.vic.gov.au/ecologicalfootprint/calculators/default.asp
Food Carbon Footprint Calculator www.foodcarbon.co.uk
Food Growers Alliance Victoria www.fga.org.au
CERES Community Environment Park www.ceres.org.au
Melbourne Community Farmers Markets www.mfm.com.au
Transition Towns http://totnes.transitionnetwork.org
Slow Food www.slowfood.com
The Green Directory: Promoting Sustainable Living www.thegreendirectory.com.au
Australian City Farms and Community Gardens Network www.communitygarden.org.au
Australian Community Foods www.communityfoods.org.au
Humanure Handbook www.jenkinspublishing.com/humanure.html
City Repair Project www.cityrepair.org
Permaculture
Djanbung Gardens www.permaculture.com.au
Permaculture Research Institute www.permaculture.org.au
Permablitz www.permablitz.net
David Holmgren www.holmgren.com.au
The Essence of Permaculture www.holmgren.com.au/html/Writings/essence.html
Brogo Permaculture http://permaculture.brogo.org.au
Southern Cross Permaculture www.southerncrosspermaculture.com.au
Permaculture International www.permacultureinternational.org
Permaculture Melbourne www.permaculturemelbourne.org.au
Permaculture services
VEG Very Edible Gardens www.veryediblegardens.com
Moonrise Permaculture www.moonrisepermaculture.com.au
CERES Permaculture Nursery www.ceres.org.au/nursery/nursery.html
Planting Guides
The Lost Seed www.thelostseed.com.au/page63.htm
Planting by the Moon www.users.on.net/~arachne/MoonPlanting.html
www.aracariaguides.com/new/moon_2009.html
Seed Saving Info
Gardening Australia www.abc.net.au/gardening/stories/s241173.htm
The Family Seed Saving Handbook www.livingschools.com.au/pdf/seedsaving.pdf
Wikipedia http://en.wikipedia.org/wiki/Seed_saving
Local Seed Saving Networks www.communitygarden.org.au/experience/experience/seed_networks.html
Seed Saving Networks
Seed Savers www.seedsavers.net/
Soil Testing
SWEP www.swep.com.au
Soil Ph Testing Kit www.global-garden.com.au/soiltest.htm
Worms and Worm Farms
CERES Wormie Bins sustainability.ceres.org.au/files/sei_advisory_worm_farms.htm
Can o' Worms www.reln.com.au/canoworms-p-9.html
The Worm Man www.thewormman.com/
Worms Downunder www.wormsdownunder.com.au/
DIY Worm Farm www.abc.net.au/creaturefeatures/make/wormfarm.htm
DIY in a Bathtub www.abc.net.au/gardening/stories/s1074679.htm