http://www.southdakotasearchengineoptimization.comSouth Dakota Search Engine Optimization - A Directory of SEO Firms in South Dakota.Copyright 2/5/2012. All rights reserved.Theta Marketing is a South Dakota Internet Marketing company that specializes in helping businesses that serve their local geographic area increase their online presence through the use of Search Engine Optimization (SEO), Social Media Marketing, and much more.http://www.southdakotasearchengineoptimization.com/m/rapid-city/theta-marketing6/21/2011 3:41:05 PM