Why Do You Connect With Certain Articles, And Not With Others?

Maybe you noticed that I've been experimenting with a lot of different topics over the past two weeks.

It's always interesting to see which articles cause you to visit my site.

The results are indexed, here's what you like:
You seem to like reading about e-mail marketing, multichannel measurement, and topics that relate to sale merchandise. It's always been this way.

The two articles that will make you the most money are the two ranked at the very bottom of the list (assigning customers to versions, and catalog profitability). These are areas where I make my living, for crying out loud! People pay me money to capitalize on these topics.

Why is it that you are least interested in the articles that make your business the most money? Just curious.