User blog comment:Brandon Rhea/Making Ads Better: The Basics/@comment-5232302-20170117011752/@comment-26239285-20170117020902

Wikia need ad revenue to keep operating this site. Ads done well will attract your attention to what is relevant to you without taking away too much space from the content your interested in. Personally I think they've done it well (apart from occasionally slowing down page loading), although I appreciate that opinions and experiences will differ from person to person.