Using social marketing tools, real estate agents are discovering new ways to open virtual doors. Industry-specific social networks, blogs, video and photo-sharing sites and other online resources are providing opportunities for agents to find and communicate with clients and colleagues. To help manage these new, fast-growing networks, BatchBlue Software is launching BatchBook for Real Estate at the Massachusetts Association of Realtors 2008 MAR Conference & Tradeshow in Worchester, MA.