The Overture Keyword Suggestion Tool which was located at:
http://inventory.overture.com/d/searchinventory/suggestion/
is now redirecting to:
http://sem.smallbusiness.yahoo.com/searchenginemarketing/
a webpage about Yahoo! Search Marketing products.
Alas, such a good tool is gone.
The Overture Keyword Suggestion Tool used to return results for total number of searches done for the previous month.
For example if you searched for “SEO”, the Overture Keyword Suggestion Tool would return results for all the keywords that had the word “SEO” in them in decreasing order of the total number searched for each keyword for the previous month.
This tool helped webmasters get an idea of what to bid for each term as the common sense says the most searched is the most popular keyword. It also helped in terms of search engine optimization as webmasters could know some terms that were popular but not very competitive in their niche.
Now that it’s gone we are left with very few “free” keyword suggestion tools. One of them I recommend is the Google Keyword Suggestion Tool.
Google Keyword Suggestion Tool returns related keywords, its synonyms terms (optional), advertiser competition for each keyword, search volume for the previous month for each keyword, and overall average search volume for each keyword.
You can also convert these keywords for the match type you want i.e… Broad, Phrase, Exact and Negative.



