The first is a 'Google' ad bar, which will spit out content related to the subjects on the page. We should see mostly 'motorcycle' related stuff.
The second, is 'BikeBandit.com', which may also show up in the Google ads.
I use BikeBandit for most of my OEM parts purchases, and quite a few of you do, also.
They provide a major source of revenue to support the site, and have decent prices on OEM parts.
I appreciate your shopping with these advertisors if possible!