SANTA MONICA, Calif. Pandora has received an encouraging sign in its struggle to buy KXMZ in Rapid City, S.D. This is a bit of an old story (they ve been working on buying the station for two years) ...

Pandora Media abruptly replaced its top executive on Monday, bringing back founder Tim Westergren as CEO in a move that might signal the Oakland Internet music company is no longer considering a sale.