## Sunday, July 06, 2008

### Readership of this blog

quantcast is an interesting new approach in Internet usage measurement. They have you put a fragment of HTML on the page that you want measured (just like sitemeter or sitecounter do). What's new is that they have instrumented a large number of households in the US. They know quite a bit about the households that have been instrumented. They watch for visits to your web page from these households and report summary statistics to you about this set. (It's a little more complicated than that. Even though they have ~ 1.5 million instrumented households, only a tiny number of these would show up at any blog e.g. this one. Sampling noise would then be unacceptable except for a small number of high traffic websites. They manage to track users across a large number of websites (e.g. this one), and have setup statistical models using which inferences are made. I thank Konrad Feldman of Quantcast for explaining these things to me).

Of course, this is only a measure of the readership of this blog in the US. What it seems to say for this blog:

• 68% are male (a bit more than the average on the net).