Google Ad Planner has much better site traffic stats
google.com
google.com
For instance, it looks like the demographic data is absolute, instead of the percentages being relative to the totals for their data set, so it's hard to tell if my site is popular among people who earn over $100K, because they only make up about 1% of the audience.
Compare http://www.quantcast.com/yahoo.com
and https://www.google.com/adplanner/#siteDetails?identifier=yah...
People suspect it's coming from the Google Toolbar, but all Google wants to confirm is that it's some sort of "secret sauce":
http://www.techcrunch.com/2008/06/24/is-google-ad-planner-ge...
It says that Digg's front page ads get only 500k-1m impressions daily with around 150k unique visitors daily while Slashdot is getting 1M-2M impressions with daily with 35k unique visitors.
https://www.google.com/adplanner/#siteSearch?identifier=digg...
https://www.google.com/adplanner/#siteSearch?identifier=slas...
(the entire description text of a story links to the comments page, its very easy to click it accidentally. Additionally, the comments are sorted, unthreaded, by number of diggs by default; unless you have an account and are logged in the landing page is completely incoherent. Compared to slashdots moderated default comment pages).
The only thing that would make such a large difference would make sense is the number of people using adblock is much higher for Digg users than Slashdot users, which doesn't strike me as very probable.
Twitter is 59% female? Seriously?
Twitter has come a long way from Kevin/Leo Laporte aiming to hit 100,000 followers.