Ad filtering
Online Advertising
Ad filtering
Ad filtering or ad blocking is a service which removes or
alters
advertising content in a webpage. This content can be represented in
a variety of ways including
pictures, animations, text, or
pop-up windows. More advanced filters allow fine-grained control of
advertisements through features like blacklists, whitelists, and
regular expression filters. Certain security features also have the
effect of disabling some ads.
The immediate benefits include cleaner looking
webpages free
from advertisements and lower resource-usage (bandwidth, CPU, memory, etc.). One
drawback is that advertisements are a major source of revenue for many websites.
However, the actual loss of revenue, when present, is difficult to measure.
Browser integration
Some web browsers support ad filtering through built-in features and plugins.
A number of popular browsers include a pop-up blocker, such as Microsoft's
Internet Explorer, Mozilla Firefox , Opera Software's Opera, and Apple
Computer's Safari. All of these browsers support extensions and/or plugins which
can include ad filters. For example, Adblock is a popular extension for Firefox.
External programs
A number of external applications offer ad filtering as a primary or
additional feature. A traditional solution is to customize an
HTTP proxy (or web proxy) to filter content. Proxies may reside on and serve a
single computer or serve a number of clients over a network. These programs work
by caching and filtering content before it is displayed in a user's browser.
This provides an opportunity to remove not only ads, but content which may be
offensive or inappropriate. Popular proxy software which can be used as
effective ad filters include: Privoxy, Squid, Proximodo, and Proxomitron.
Common advertising techniques
See also
External links
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This guide is licensed under the GNU
Free Documentation License. It uses material from the Wikipedia.
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