The PR agency Mahir PR has presented the results of a blog survey with 740 blog readers from 31 participating Swedish blogs. It is hard to objectively value the results since we don’t know what types of blogs that participated. But among the findings they say that as many as 58% have bought a product after reading about it in a blog. Presentation here in Swedish.
As a comparison check out my BlogSweden 3 survey here (pdf) from January 2008. The two previous versions can be found in the right sidebar of this blog.