A buddy asked me for any research I know of that suggests a difference between posting new content on his work site daily for a month vs. 30 posts on the 1st. I know in my experiments, I see a bit of an improvement when I do daily, but I haven't really quantified it or published my findings. He works for a scientific research company, so they want actual published articles to support either way. I used the Google box but didn't have a ton of luck. Anybody know of anything I could pass along?