1) UP & DOWN netizens voted - UP TABLE: Double voting possible / multiple voting - DOWN Table: possible double voting / multiple votes: 3 Table available 2) Aggregate number of fan posts - can not register more than 10 days - BEST fans in selecting, adding one day you can vote UP TABLE (* BEST fans : number of posts, views, referrals in order of selection) 3) SNS vote - one singer per person for up to 3 days only aggregated search table / multiple voting