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Looking at the Hot Questions list on StackExchange.com I have a feeling that its favoring the bigger sites. Because their 'hot questions' get more time in the spotlight, they in turn get hotter and keep others out of the spotlight.
To me it looks like Programmers, Super User and Stack Overflow are over-represented, which especially in Programmers case I believe is due to the users there being much more liberal in upvoting answers than the other sites.
I don't propose filtering the list, because I do believe its a great thing for every site to have their best questions in the spotlight regularly. However, I feel that its currently not working as intended. Rather than being a nice overview of the network, it looks like we're only seeing a small subset instead.
Is there any data available to prove me right or wrong?