Since March 2004, the “blogosphere” has doubled in size every five to seven months. There now are more than 53 million blogs. Key blog statistics:

150,000 — The number of blogs created each day, or nearly two blogs per second.

1.6 million — The number of daily postings, or more than 66,600 per hour.

39% of the blogs were in English.

31% of the blogs were in Japanese.

12% of the blogs were in Chinese.

2% of the blogs were in Spanish.

40% of those who start a blog are still posting on it three months later.

Source: Technorati, a San Francisco firm that tracks blogs, as of June.

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