Overture reports that searches for a certain TV show happened 14697 times during the month of July.
Wordtracker reports that this TV show was searched for 1155 times during the last 60 days and predicts that there will be 1111 searches for that term in the next 24 hours.
I happen to have a website about that TV show which received a little more than 400 visits last month, that's 14 a day. (Although my rankings suck even though I thought it's SEOed well and it has a PageRank of 5 and it's listed in DMOZ. Number 32 on Yahoo and 100 something on Google. No wonder why no one finds it.)
Anyway, I looked at the search results for a more commercial two keywords (let's call them "keyword1 kekyword2") that I recently created a new site for. According to Overture, there were 57246 searches for keyword1 keyword2 during the last month. Impressive.
But then I looked at Wordtracker which reports a dismal 164 searches during the last 60 days and predicts 158 total searches during the next 24 hours.
Now this is a pretty huge difference between those two examples. For the TV show, Overture's number was 12.7 times greater than the Wordtracker number (reflecting Overture's greater search traffic?).
But for the more commerical keyword pair, Overture's number is 349 times greater than the Wordtracker number.
What's going on here?
I tried another TV show. Overture's number is 21 times bigger than Wordtracker's number.
I tried another very popular commerical search term, Overture's number is 432 times bigger.
Wow, is Overture VASTLY overinflating the number of searches for commercial words (by a factor of TWENTY?), or do people use the search engines that Wordtracker uses for its results to only search for old TV shows?