"Michael/Luke, I use the web interface for Gmail. Michael, from my own (non-scientific) observations, I believe you are correct. I have noticed that over time if my reading habits begin to gravitate away from a certain blogger/author, the emails start fading to the promotions or even spam folder. I think there is some categorization based on content and format (and probably sender reputation), but it must have some portion of weighting based on my own preferences. BTW, I was able to set certain subjects and senders to appear on a specific tab, much like using a rule. This is of course, personal preference, so I don't know that I would expect a reader to go through this hassle unless they are highly engaged and loyal. Just for what it's worth from one man's observations." - Ken Stewart | ChangeForge