If 2010 is anything like the last five years, online interest in real estate will peak for the year this month or next. That means that very soon, the number of people using the Web to find real estate will be on a seasonal, downward slope until the January 2011 bump.
This lull sometimes puts people into a panic about what to do next. Often the first thing they seize on is search engine optimization (SEO). This is a tempting area to address, if only because of the misconception that SEO is free. It's free only if the time it takes you to research and create content is free.