PurposeThemaingoalsofthisstudyare(1)tostudythe–informationsourcesusedthemostbycustomersofIslamicbanks;and(2)tocomparethiswithconventionalbankcustomers. Researchdesign,data,andmethodology125Islamicbank–customersand125conventionalbankcustomersweresurveyed.Thestudyemployedtwoindependentsampletests.Additionally,anexploratorystudywasconductedtosupportthequantitative analysis. ResultTheresultsshowthatIslamicbankcustomersuse–personalaswellasmarketinginformationsourcesmorein-tenselythanconventionalbankcustomers,althoughtheresultdifferenceswerenotsignificant.Specifically,customersofIslamicbanksusecertainpersonalresources(parentsandfriends)andmarketinginformation(marketers)intenselythancon-ventionalbankcustomers. ConclusionThestudyrevealedthatfriendsandparentsare–themostimportantinformationsourcesfortheselectionoftheIslamicbank.Inaddition,basedontheresourcesused,Islamicbankingcustomerscanbeclassifiedastraditionalandreligiouscommunities.Therefore,themosteffectivecustomercommunica-tionswillbethroughIslamicgroupssuchasIslamicsocialin-stitutionsandIslamiceducationalinstitutions.