A useful discussion at Catallaxy on the value of blogging versus the mainstream media has inadvertently illustrated the echo chamber effect, by which lots of bloggers think that everyone reads blogs because all their friends do.
Blogging is immensely valuable, enjoyable, and will doubtless grow over time. But in the 2004 Australian Election Study, 12% said they’d used the Internet to get election news, while just 0.7% said they’d seen a blog during the election campaign.* Indeed, one suspects that if the survey had pressed them further, some might have admitted that they’d noticed one in their bathroom, but managed to clean it off.
* The fraction getting election news from other media was newspapers 57%, radio 44%, TV 69%.