BeforeFacebookappeared,people_______．A．hadalimitednumberofaccountsB．enjoyedacomSincethebeginningoftheInternetera,ithasbeenwidelyacceptedthatwhenyoujoinanonlinecompany,whateverdatayouputintoitbelongstoyou．That

　　BeforeFacebookappeared,people_______．A．hadalimitednumberofaccountsB．enjoyedacom

　　SincethebeginningoftheInternetera,ithasbeenwidelyaccepted

　　thatwhenyoujoinanonlinecompany,whateverdatayouputintoit

　　belongstoyou．

　　Thatmeansyoucansignupforonekindofemail,importyourcontacts

　　intothatsystem,andifyoulaterdecidetoswitchtosomeotheremail

　　service,youcanexportallyourcontactsfromthefirstserviceintothe

　　newone．YoucanuseMicrosoft'sHotmail,thenmovetoYahooMail,thento

　　Google'sGmail．Oryoucanhaveaccountsonthreeservicesandkeepall

　　yourcontactsineachone．

　　That'thewaythingswere-untilFacebookappeared.Facebooktooka

　　differentapproachUntilrecently,everythingyouputintoFacebook

　　couldnotbeexportedanywhere.Ineffect,youdidn'townyourdata.

　　Facebookdid.

　　Ofcoursethisisrubbish．TherealityisthatFacebookwantstomakeitdifficult,ifnotimpossible,foryoutoleave．

　　NowthatpolicyhassparkedafightbetweenGoogleand

　　Facebook．Googleisangrybecauseitsuserscan,andoftendo,exporttheir

　　GmailcontactinformationintoFacebook．Butthosepeoplecan'tbring

　　FacebookinformationbackintoGmail．

　　EarlierthismonthGoogledeclareditwouldblockexportsofitsdata

　　toFacebook．Inashamelessmove,FacebookbrokethroughGoogle's

　　roadblocksoitsuserscouldkeeppullingdatafromGoogle．

　　Googlesaiditwas"disappointed''withFacebook'sbehavior．Italso

　　createdawarningscreentotellGmailusersthatiftheyexporttheir

　　informationtoFacebooktheywon'tgetitback．

　　Basically,Facebook'spositionwithmajorITcompaniesisthis：ifyou

　　wantaccesstoalltheinformationwe'vecollected,strikeadealwith

　　us．MicrosoftandYahoohavedonethat,andnow,likemagic,theycanexport

　　Facebookcontactinformationintotheirsystems,whileGooglestill

　　can't．

　　RemembertheearlydaysoftheNet,wheneverythingwasgoingtobe

　　openandflee?Thatwasgreatuntilpeoplerealizedthattheiruse