49 Amazing Social Media, Web 2.0 And Internet Stats. I particularly like these:

133,000,000 – number of blogs indexed by Technorati since 2002

346,000,000 – number of people globally who read blogs (comScore March 2008)

900,000 – average number of blog posts in a 24 hour period

1,750,000 – number of RSS subscribers to TechCrunch, the most popular Technology blog (January 2009)

77% – percentage of active Internet users who read blogs

55% – percentage of the blogosphere that drinks more than 2 cups of coffee per day (source)

81 – number of languages represented in the blogosphere

59% – percentage of bloggers who have been blogging for at least 2 years.