I was just doing some random searches in Google to see what kind of stuff I could find and I came across this. The advertisments on the right are paid advertising. What I noticed is that when you search for some racial keywords, it brings up an ad for Ebay.

Nigga
Niggas
Mexicans
Ching

In case they take them down or change them, I took screencaps of each one.
Nigga, Niggas, Mexicans, Ching.

So I just though it was interesting that these came up because someone had to have specified these exact keywords in the ebay adwords account.