"The real question is will I be seeing a banner for Southwest when I search for JetBlue."
It's not so much what you are going to see, as what you're not going to see. I'm sure BP is happy to buy a shiny image ad and take traffic away from wikipedias article on the deepwater horizon oil spill.
When searching for "BP", all of the results are relevant, but none are about Deepwater Horizon.
Interestingly though, at the bottom of the page, I see Google has an "In-depth Articles" section that has three articles, all about spills, two of them critical of BP.
It's not so much what you are going to see, as what you're not going to see. I'm sure BP is happy to buy a shiny image ad and take traffic away from wikipedias article on the deepwater horizon oil spill.