By using a collaborative filtering method, we can identify keywords that are closely related to "join free". Of all the web sites that target "join free", 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 "join free" also exists in these keywords. Drill down to see who is targeting long-tail variations off of "join free".
The keyword phrase "join free" can be broken down into these keyword pieces. Find out who is targeted short-tail variations off of "join free".