Well, there I am again, mentioned in an article in Nature (Nature Reviews Genetics, actually), but I have to agree with RPM: it’s an awfully thin article that draws unwarranted and hasty conclusions from a tiny sample. It would have been better to actually talk to some of the people blogging about genes and genetics—we tend to be a voluble bunch, I think, and would have given her plenty of material to work with—rather than glancing at a few sites and trying to draw grand generalizations from them.
Skipper M (2006) Would Mendel have been a blogger? Nature Reviews Genetics 7:664.