The Server Fault blog uses WordPress.

The number of database queries WordPress uses to render any given page varies widely, but 38 is very close to the low end. It doesn't appear to be a cause for concern.

Further reading:

 * [Help with WP_Query - Too many mySQL queries](http://wordpress.stackexchange.com/q/70794/18054)
 * [How many Queries are too many?][1]


  [1]: http://weblogtoolscollection.com/archives/2008/07/12/how-many-queries-are-too-many/