Here are some others which may be useful

Broadcaster's Sites:

ABC

http://www.abc.net.au

SBS

http://www.sbs.com.au

SEVEN

http://www.seven.com.au

NINE

http://www.ninemsn.com.au

TEN

http://www.ten.com.au

PRIME

http://www.primetv.com.au

WIN

http://www.wintv.com.au

TEN VICTORIA

http://www.tenvic.com.au

SEVEN CENTRAL

http://www.telecasters.com.au/sevencentral

IMPARJA

http://www.imparja.com.au

Government Sites:

Australian

Communications

Authority

http://www.aca.gov.au

Australian

Broadcasting

Authority

http://www.aba.gov.au

Department of

Communications

Information

Technology and the

Arts

http://www.dcita.gov.au

Other Associations:

Digital

Broadcasting

Australia

http://www.dba.org.au

Digital

Television

Group (UK)

http://www.dtg.org.uk

Confederation of 

Aerial

Industries Ltd

http://www.cai.org.uk

Electronic

Services

Industry

Association

http://www.esia.org.au

Federation of

Australian

Commercial

Television

Stations

Australian

Captions

Centre

http://www.hills.com.au

Matchmaster Communications

http://www.matchmaster.com.au

Kingray/GME Electrophone

http://www.gme.net.au