A majority of US government agencies now using social media

A recent report from talent management companies Human Capital Institute and Saba indicates that a majority of US government agencies are using social media.

The report estimates that 66% of US government agencies use social media tools, with 65% using more than one tool.

A graph from the  report (see below) indicates that the US government still trails US corporate use of social media - which provides some indication of the direction for the future.

I wonder how we're tracking in Australia - anyone seen research on the topic?