PSFK attended the YPulse Mashup this week, where we sat in on a talk on marketing with Mixtapes. Takeaway: Get a DJ with street cred and hope you don’t get busted.

Moderator Adisa Banjoko, a pioneer in hip-hop journalism, mentioned a group called the Hip Hop Chess Federation which piqued our interest, so we did some digging. It's a non-profit that brings in mentors to train urban youth in the arts of hiphop, martial arts, and chess (and for those who think the latter is an anomaly, go to Washington Square Park). From their MySpace profile:

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