?? ????? ?????? online advertising ?? ?????? ????? ???? ??? ????? ????? ??? ???. ??? ??? ????? ???? ?? for ??? ?? ??? ?? ?? ??? audience ??? ???? ??? ?????? message ??? ?? ?????? ????. ?????? ??????? ??????: has ??? ?? sales ?????? ??????? ??????: attention ?? ??to ??????? ? ????? attract