I sent an e-mail to Lyttle and asked him if he had developed blogs for other Australian politicians.
I received an answer where he tells me that he also have developed a blog for Michael Harbison.
Lyttle also reveal in the mail that: "I am currently working on another blog, but cannot disclose any information until it has been released". - Which is understandable.
This however, might show that there is a growing interest for blogs amongst politicians in Australia. It is certainly not big compared to the US but at least it's there.
Thanks for the information Adam.