“55% of Americans search user-generated health content, including:
* 36% who look for health information on Wikipedia
* 36% who read online health forums and message boards
* 27% who read health blogs.
The content is useful, too: 57% of people who used it said their online searching led to productive conversations with their physicians.”
Article
Jane Sarasohn-Kahn, Health Populi, 9 July 2009

