DALLAS, March 30, 2011 (GLOBE NEWSWIRE) — John Pentony, Publisher of StockGuru.com, announced today that StockGuru has released a new executive interview featuring Larry Kristof, the President and CEO of Mantra Venture Group, Ltd. (OTCBB:MVTG). Mantra, through its group of sustainable energy, carbon reduction and consumer product subsidiaries, is active in the green technology marketplace [...]