Pjman - 10:55 pm on Jun 14, 2013 (gmt 0)
I definitely see a similar trend in my older sites. 8 years +. My newer sites(3 years old), not at all.
This could normally be chalked up to you get regular direct traffic and regular stable search traffic. But on two of my sites I send newsletters to tons of people (250K+) once a week. During the 48-send window direct traffic jumps and at the same time search goes up to.
At I thought maybe it was just the day of the week or time. So I sent it 3 different days/times of day. The same exact result every time. Direct Up - Search Up
I only see this with Google, not all search.