What
are Pop-up ads!!
Are a form of online advertising on the World
Wide Web intended to increase web traffic
or capture email addresses. It works when certain web sites open a new web browser
window to display advertisements. The pop-up window containing an
advertisement is usually generated by JavaScript,
but can be generated by other means as well.
A
variation on the pop-up window is the pop-under advertisement.
This opens a new browser window, behind the active window. Pop-unders interrupt
the user less, but are not seen until the desired windows are closed, making it
more difficult for the user to determine which Web site opened them.
Processes
other than the Web browser can also display pop-up ads, or can direct the
browser to display them. Many spyware programs do this, as well as some advertising-supported
software, although the line between the two is sometimes thin.
A
different sort of pop-up ad can be sent via the Messenger service in Microsoft's
Windows operating system. These pop-ups appear as Windows dialog boxes
with a textual message inside, usually directing the user to a Web site. Claims
have been made that this type of pop-up has been used to commit extortion.
Threats of legal action against the company D Squared Solutions has caused them
to stop using this technique.