Giant Trees - Tasmania’s World Class Forest Giants:
www.gianttrees.com.au/

Australian Gymnosperms [Pines]:
www.conifers.org

Richard Preston on the giant trees:
www.ted.com/talks/richard_preston_on_the_giant_trees.html

Friendship Through Gardens:
www.gardenclubs.org.au

The National Trust of Australia – Victoria has an excellent register of Significant Trees:
www.nattrust.com.au

An arboretum doing eucalypt research:
www.dn.com.au

Notable Trees of New Zealand
www.notabletrees.org.nz

Big Trees of British Columbia, Canada:
www.for.gov.bc.ca/hre/bigtrees/index.htm

Exploring the world of trees
www.tree-species.blogspot.com/2008/06/greatest-trees-in-world.html