Anoldsayinghasitthathalfofalladvertisingbudgetsarewasted-thetrouble

　　is,nooneknowswhichhalf.Intheinternetage,atleastintheory,this

　　fractioncanbemuchreduced.Bywatchingwhatpeoplesearchfor,clickonand

　　sayonline,companiescanaim“behavioural”adsatthosemostlikelytobuy.

　　Inthepastcoupleofweeksaquarrelhasillustratedthevalueto

　　advertisersofsuchfine-grainedinformation:Shouldadvertisersassumethat

　　peoplearehappytobetrackedandsentbehaviouralads?Orshouldtheyhave

　　explicitpermission?

　　InDecember2010America'sFederalTradeCornmission(FTC)proposedadding

　　a"donottrack"(DNT)optiontointernetbrowsers,sothatuserscouldtell

　　adwertisersthattheydidnotwanttobefollowed.Microsoft'sInternetExplorer

　　andApple'sSafaribothofferDNT;Google'sChromeisduetodosothisyear.In

　　FebruarytheFTCandDigltalAdwertisingAlliance(DAA)agreedthattheindustry

　　wouldgetcrackingonrespongingtoDNTrequests.

　　OnMay31stMicrosoftSetofftherow:ItsaidthatInternetExplorer

　　10,theversionduetoappearwindows8,wouldhaveDNTasadefault.

　　Itisnotyetclearhowadvertiserswillrespond.GetingaDNTsignaldoes

　　notobligeanyonetostoptracking,althoughsomecompanieshavepromisedtodo

　　so.Unabletotellwhethersomeonereallyobjectstobehaviouraladsorwhether

　　theyarestickingwithMicrosoft’sdefault,somemayignoreaDNTsignaland

　　pressonanyway.

　　AlsouncleariswhyMicrosofthasgoneitalone.Atterall,ithasanad

　　businesstoo,whichitsayswillcomplywithDNTrequests,thoughitisstill

　　workingouthow.IfitistryingtoupsetGoogle,whichreliesalmostwhollyon

　　defaultwillbecomethenorm.DNTdoesnotseemanobviouslyhugesellingpoint

　　forwindows8-thoughthefirmhascomparedsomeofitsotherproductsfavourably

　　withGoogle'sonthatcountbefore.BrendonLynch,M

　　Microsoft'schiefprivacyofficer,bloggde:"webelieveconsumersshould

　　havemorecontrol."Coulditreallybethatsimple?

　　26.Itissuggestedinparagraph1that“behavioural”adshelpadvertisers

　　to:

　　[A]easecompetitionamongthemselves

　　[B]lowertheiroperationalcosts

　　[C]avoidcomplaintsfromconsumers

　　[D]providebetteronlineservices

　　27.“Theindustry”(Line6,Para.3)refersto:

　　[A]onlineadvertisers

　　[B]e-commerceconductors

　　[C]digitalinformationanalysis

　　[D]internetbrowserdevelopers

　　28.BobLiodiceholdsthatsettingDNTasadefault

　　[A]manycutthenumberofjunkads

　　[B]failstoaffecttheadindustry

　　[C]willnotbenefitconsumers

　　[D]goesagainsthumannature

　　29.whichofthefollowingistureaccordingtoParagraph.6?

　　[A]DNTmaynotserveitsintendedpurpose

　　[B]AdvertisersarewillingtoimplementDNT

　　[C]DNTislosingitspopularityamongconsumers

　　[D]Advertisersareobligedtoofferbehaviouralads

　　30.Theauthor'sattitudetowardswhatBrendonLynchsaidinhisblogis

　　oneof:

　　[A]indulgence

　　[B]unde