used in ad networks, describes an ad campaign which is not restricted to certain publishers, but is available for display across the entire publisher list.

This term may be used by an advertising network to designate banners which are available to all of their member sites, and aren't targeted to any particular category. These will tend to pay less than targeted ads.

Scheduling of Internet advertising whereby an ad network positions ads across the sites it represents at its own discretion, according to available inventory (Source: IAB)

Ad buying option where ad placements appear on any pages on websites within an ad network.

Run of Network advertising is a form of marketing which lets an advertiser post an avert on a network of realatively low quality websites which are not focused on any specific category. This generally creates relatively low quality traffic as the ads are generally not relevant to what is on the websites. This is similar to Run of Site Traffic.