" ... there are now at least 70 million blogs in existence with 63 million blogs having been created on 8 leading blog hosting sites that host 1 million or more blogs alone ... "
See for yourself at THE BLOG HERALD July 19, 2005 by country and host
Is the count important? No really ! BLOGs (as communication platform, as easy tool for micro and personal publishing, etc.) are useful and important! For the bloggers, for blog-user/readers and more and more the community, the public and the news industry.