"Under U.S. law, 47 U.S.C. § 317, a radio station can play a specific song in exchange for money, but this must be disclosed on the air as being sponsored airtime, and that play of the song should not be counted as a "regular airplay".<p>Source: Wikipedia<p>Does LinkedIn identify the candidates on the top as having a "premium" membership?<p>Also, the "charts" were somehow important in the radio industry, so the law was that paid plays weren't supposed to affect the charts. What charts do we have for candidates here?