Ads will be displayed on many popular pages of the site, although not on all pages throughout the site.

We have reserved an 160x1200px ad block for custom ads, which will either display on the left or on the right of a page. Your ad may be displayed along with up to three further ads. The position of your ad (top, middle, bottom) will randomly change each time the ad is being displayed. Your ad may be displayed along with ads by other partners, or with Google Adsense ads.

Your ad will be displayed as often as possible, although only one ad by a single partner will be displayed at once on a page. The more partners will purchase ad space, the less often single ads will be displayed. You may improve the chances for your ad(s) to be displayed by purchasing further ad slots.

For both technical and design reasons, some pages will not display specific ad formats on mobile devices such as tablets or phones. A user who has made a donation to support our site will not see any ads.