Tue, Oct 23, 2012 12:00 - STL Marketing Group, Inc. (STLK: OTC Link) - Tier Change - The symbol, STLK, no longer is classified as OTC Pink No Information. As of Tue, Oct 23, 2012, STLK resides in the OTC Pink Limited tier. You may find a complete list of tier changes at otcmarkets.com.