Bears of Manitou has drawn plenty of fans around Phoenix for its indie-folk tunes, but its members have managed to attract attention beyond that, staging the kind of interesting marketing stunts that get fans involved and laughing. A few days after the debut of Call-In Oates, a phone service that allowed fans to dial an 800-number and play some lo-fi selections from the oeuvre of blue-eyed soulsters Hall and Oates, the Tempe-based band quickly seized the fever, launching their own toll-free call-in line and even offering fans a chance to order customized songs through their Facebook pages. Any band can Tweet into the World Wide Black Hole — but bands like Bears of Manitou make the social marketing feel, well, social.