Cluster Research returns a list of all keywords semantically related to the researched query, i.e. there're at least two identical pages in top 20 search results for the researched query and its related keyword from Cluster Research.
Search Volume - keyword’s average monthly search volume
CPC - keyword’s cost-per-click according to Google AdWords
Competition - level of competition on the keyword in paid search
Connection Strength - the number of identical URLs in search results produced by the researched query and its related keyword from Cluster Research. The maximum value of Connection Strength may equal 20.
Filtering and Sorting
The returned list of keywords may be filtered by connection strength and presence of place names.