English is still the global language of business but is not necessarily the language used in the bloggosphere.
A recent report in The Guardian showed the rapid speed of expansion of broadband access in China. 300m accounts were added. That is a figure almost equal to 5% of the worlds population! This is being fuelled by active Government support. When Chinese blogging really takes hold we will see English drop to third place (see graph below)
The report also highlighted the extent of the digital divide. Developing countries are being left behind.
The Q4 2006 report from Technorati makes interesting reading. This shows the languages used in all the posts to blogs that they track (70m+ blogs and 1.9 billion posts)