searchthetail.com
About company
Search The Tail takes Google a step further by allowing users to narrow their search results by using either popular keywords or obscure terms. The keyword list, namely Google Tail, is in order of popularity, but one can also choose to have it displayed alphabetically. Besides just being useful for average searcher, Search The Tail also comes in handy for people working with internet marketing. From their website: "Not sure what search terms to use? This engine shows you all possible variations of a query from common (popular head) to obscure terms (long tail) and lets you narrow your search using these variations in the tail. Thus, Search The Tail is unique, it is not only used to find Long Tail of Search but also to improve the relevance of search results using long tail refinements."
