Answer:
Visitors spend a greater amount of time at portal sites than they do at most other types of Web sites, which is attractive to advertisers. TRUE
Sites conducting monetizing campaigns are unconcerned about visitor backlash. FALSE
Explanation:
The first statement is true, as portals provide a great pace for advertisers to place their ads and marketing messages. Portals are places where people come with a specific purpose (usually loosely related to the marketing niche of the advertiser), so marketing messages can be subtly placed on portal sites.
The second statement is false, because if the dissatisfied visitors stop visiting the site, it would lose its audience. If that happened, they would not be able to conduct those campaigns in the first place, as no advertiser would get the incentive to communicate marketing messages to a smaller, decreased audience.