Michael VanDeMar wrote an interesting post on his blog about the uselessness of the Google Keyword tool for SEO. He explains that while we reported that the tool is showing keyword numbers, it still isn't helpful. His rationale is that the numbers refer to PPC search behavior only, not overall Google.com search behavior, and then he explains how past research has given him this perception. He writes:
For instance, for [birthday poems] the tool gave a number of 27,100 (which would be an average of 903 searches per day) and bidding on that keyword for 3 days gave me 2,411 impressions (or 803 impressions per day). This is fine and dandy if I am only concerned about getting traffic from AdWords, of course. The thing is, if I rely on this data for my SEO efforts I will at best be most likely wasting my time.
Interesting analysis. Jill Whalen admits that the numbers seem rather high but it now makes sense because they use the content network in their numbers.
Forum discussion continues at Sphinn.
