Ads are served up based on a person's browsing habits. It's called targeted advertising. Google-ing that will provide more info.
As for ads in general, always be sure you are logged in when viewing the site to reduce the number of ads that do appear.
Lori (& Dave, my spirit guide) - FMCA #F419886 | RV/MH Hall of Fame Lifetime Member
2016 Phoenix Cruiser 2350S & 2014 CRV EX-L AWD, My iRV2 Photo Albums
2018 Phaeton 40IH,2006 Bounder 36Z, 2004 Cougar 285EFS, 2000 Aerolite 25FBR
There is great need for a sarcasm font.