Google AdWords Monthly & Yearly Search Counts
Finally! Google has decided to reveal the monthly and yearly searches for every keyword phrase searched on Google.com. I hope there is an API for this so that all the keyword software makers can integrate this into their software as soon as possible.
According to Google AdWords Help Center:
The Approx Search Volume [Previous Month] column shows search volume statistics for the last calendar month. The Approx Avg Search Volume column shows average monthly search volume over a recent 12-month period.
Since Yahoo’s Overture keyword tool is officially dead, this tool is the next best thing at the moment. Google should have done this earlier.