•In recent years, Web portal
sites have had to rely on paid services to bring in sufficient
revenue to survive.
•
•One way that a portal site can
increase its advertising revenue is to sell target marketing
opportunities to advertisers through use of its search engine.
•
•Newspaper and magazine
publishers have tried to use the advertising supported model for
their sites, but few have been successful in attracting
sufficient advertiser interest to operate their sites
profitably.