One of the easiest resources to use that can yield the most results with the littlest amount of effort is to use an online service that is hosted by a local entity. Whether it is a local newspaper's website, a local Realtor's website, or another resource, these can be a great way to get a good feel for what the local market is like in your area at any given time. The best news about searching through your local listings is that they are updated regularly, often on a weekly basis.