Online advertising, also called online marketing or Internet advertising or web advertising, is a form of marketing and advertising which uses the Internet to deliver promotional marketing messages to consumers.
Consumers view online advertising as an unwanted distraction with few benefits and have increasingly turned to ad blocking for a variety of reasons.
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Website publishers incorporate frame ads by setting aside a particular space on the web page.
The Interactive Advertising Bureau's Ad Unit Guidelines proposes standardized pixel dimensions for ad units.
As advertisers collect data across multiple external websites about a user's online activity, they can create a detailed picture of the user's interests to deliver even more targeted advertising.
This aggregation of data is called behavioral targeting.
The geographic information from an IP can be supplemented and refined with other proxies or information to narrow the range of possible locations.