In addition to a sign in the yard, and entry onto the MLS systems, I have a base marketing plan that is applied to all of my listings that include a virtual tour, entry onto dozens of real estate affiliated websites (Trulia, Yahoo Real Estate, Realtor.com, Google, etc.), flyers, placement on my company and personal website, schedule office and area Realtor tours, and open houses. I also door knock or cold call neighbors, send listing notification to my personal and business database, utilize Craigslist, blogs, and social media sites like Facebook, Myspace, Linkedin, etc.
For my luxury listings over $500k, I utilize additional advertisment such as the Wall Street Journal, Proxio (International MLS), network to members of the Institute for Luxury Marketing, and other luxury agents, e-flyer notification to thousands of Realtors, and demographic specific marketing (state and nation wide). For these listings I also create color brochures, flyers, and host Realtor events. I also create a property specific website full of information, links to local points of interest and information, virtual tour, and associated documents. Internet and publication marketing for homes in this price range vary depending on the type and use of the property, and my targeted audience.
See the below link for an example of a property specific website.
My marketing plan is always evolving as I learn new techniques through classes, media, or through conversations with other Realtors and professionals.