From Wikipedia, the free encyclopedia
	    An adserver is a web server which hosts advertisements used in online marketing. 
	    The content of the webserver is constantly updated, so that the website or webpage 
	    on which the ads are displayed, contains new advertisements i.e. banners (static images/animations) 
	    or text when the site or page is visited or refreshed by a user. 
	    In addition, the adserver also performs various other tasks like counting the number of impressions/clicks
	    for an ad campaign/s and report generation, which helps in determining the ROI, for an advertiser, on a particular website.

	    Due to its potentially intefering nature, adservers are considered by some disruptive, and programs 
	    and extensions (see AdBlock) have arisen so that the users thereof need not see the server's adverts.