Note that many websites have their own advertising, unrelated to adware.
As stated in their FatPickle Terms of Service Agreement:
The PROVIDER may provide free or reduced-cost services, tools and features through the sponsorship of advertisers. As a result, the PROVIDER asks that the USER support the advertisers and their advertising. The PROVIDER requires all advertising to be suitable for general audiences and makes every effort to provide advertising relevant to the USER. The PROVIDER reserves the right to serve ads according to its discretion.