I recently noticed the "Top Network Askers" information at the right side when i call my default link to my newest favorite-tags on Stack Overflow:
But this can't be correct because those users have asked very few questions with no upvotes like JayMac. Maybe i have misunderstood it though.
Update: it seems that this list always repeats the same order in which the questions appear that are listed on the left side. The users on the right side are the OP's of the questions of the left side. You can see it also on https://stackexchange.com/.