How does it work?   By entering your URL, the keyword tool displays a list of relevant user queries that have occurred on Google.com with some frequency over the past year.   The results generated from the tool would display the competition of keyphrase you might face, approximate monthly searches, suggested bid in USD and the keywords related to your search words and phrases.  The keywords are also organized by category. Click any category to expand and view its subcategories. If applicable, you’ll also see the keywords organized by brand names.

Well, Google controls the rule of game, using this tool would generate some ideas on how’s the rule of thumb.

Written by Eugene Wong on May 22, 2009.
Last revised by: Eugene Wong on April 2, 2011.