The following moderators provide local knowledge and expertise for Orb-weaving spiders (several families):
Includes Araneidae, Nephilidae, Tetragnathidae.
References for these families:
Araneidae: http://www.arachne.org.au/01_cms/details.asp?ID=1092
Tetragnathidae: http://www.arachne.org.au/01_cms/details.asp?ID=1530