Artspeak Central chiefly concerns Art in Australia, though not entirely.
My favourite living Art Critic here in Oz is Christopher Allen, who is more qualified than most to speak about Art and thus offers highly interesting scholarly articles with seemingly no bias.
Sebastian Smee is another favourite Art Critic, who was based in Australia for a time, but is now stationed in the USA and currently writes for the Boston Globe.
In relation to Australian Aboriginal Art and issues, Nicolas Rothwell offers insightful views, though to my understanding -so far- his expertise is in journalism.
The subject of Art to some degree can be likened to Philosophy in which many opposing ideas exist among different individuals all believing that they are right.