Just for fun, I made a comparison with the data from Google Trends:
Google is actually pretty close, although the last few months are off.
Google is actually pretty close, although the last few months are off.
According to alexa "daily reach", traffic from Mar 2009 to Mar 2011 went from reach ~0.0137 to reach ~0.104, so I scaled the Alexa graph to show ~7.9x more absolute uniques in the end than in the beginning.
I wonder given the lack of accuracy between quantcast/alexa/compete if there is room in the market for another traffic intelligence site that piggybacks off of Google trends somehow.
[Edit] Looks like its against their TOS: http://groups.google.com/group/google-labs-trends/browse_thr...
Hmm...