Now we know who the big fish are what about knowing where the big ponds are. What are the biggest forums on the internet. For sure DP is nearly top 100 on Alexa. Looking at http://www.big-boards.com/ there are some pretty beefy boards the top showing 6.5 million members where as we have 60k. Although there Alexa is a mere 872. Whats up with that. So whose the daddy?
IMO Alexa rankings are biased because they only count people who installed their not very popular Alexa toolbar. I'm guessing that since DP is a webmaster's forum, more members install the Alexa toolbar than other boards so thats why their rankings are better.