I think this is interesting. I didn't notice any data in there about search engines, but I suspect that reading individual blog posts is wildly underrepresented

I think this is interesting. I didn't notice any data in there about search engines, but I suspect that reading individual blog posts is wildly underrepresented, because many inexperienced people wouldn't be able to identify one in search results, but they'd happily consume the data therein when given in response to said search. Depending on how the question was asked, I'd very definitely not answer yes to reading blogs -- I track zero RSS feeds regarding my trade, and don't visit any blogs at all in a direct fashion.