Denise Turner, head of sales at bicoastal HSI Productions, abruptly resigned from the company Jan. 20 after three and a half years; reached by SHOOT, Turner said her leaving was amicable and prompted by her desire to "explore new opportunities," which may or may not be within the industry….Sarah Holbrook has signed bicoastal Elias Associates for exclusive East Coast representation through her New York-based Holbrook, in association with Astrow Ziegler…Santa Monica-based Keri Weber and San Francisco resident Traci Meyer have teamed to launch independent repping firm Superglu. The new venture handles the West Coast and Texas for bicoastal Reactor Films and Backyard Productions, Santa Monica and Chicago. Superglu also covers Texas and the West Coast (excluding Los Angeles) for bicoastal Moxie Pictures….Director/cameraman Bob Carmichael’s Malibu-based Denali Productions has lined up national representation: Rich Schafler of Benson/Schafler, New York, handles the East Coast; Chicago-based Jack Lewis covers the Midwest; Dallas-based Faith Kuczaj oversees the Southeast; and Sherry Howell and Donna Woodroof will rep Denali on the West Coast. Denali’s Carmichael specializes in extreme sports and action commercials, offering expertise in aerial, marine and mountain shooting. Company exec. producer is Doug Millington….Motion graphic design studio Blind Visual Propaganda, Venice, Calif., has signed San Francisco and Los Angeles-based Reber/Covington for exclusive West Coast, Texas and Detroit representation….