By using a collaborative filtering method, we can identify keywords that are closely related to "for sale". Of all the web sites that target "for sale", these are the most commonly targeted keywords by this same group of web sites, sorted by the highest number of web site matches.
The root keyword phrase "for sale" also exists in these keywords. Drill down to see who is targeting long-tail variations off of "for sale".
The keyword phrase "for sale" can be broken down into these keyword pieces. Find out who is targeted short-tail variations off of "for sale".