I just got back on sunday from Atlanta, I was down there doing some work on the servers and doing some training with Robin. While I was there we ran a routine that turns peoples access to the site off if they haven't renewed their subscription. The site was changed over to vBulletin in March of 2001. We have good statistics since that time - here's some interesting statistics:
Currently there are 8101 registered members on the site (those with current subscriptions - out of 13038 total users listed) - that's a little more than half of the subscribers to the magazine. Some of those ~5,000 people were users that were on the original CDW site before the TDR bought out the site and made it subscription based.
The reason those people are left in the database is twofold - first if they later renew their subscription they don't lose their previous logon information, second if we removed their names from the database, their name would also be removed from any posts they had made since they are linked.
Since March of 2001, 6256 users have registered on the site (some of those are new subscriptions, some are previous subscribers that have simply registered for the website - no way to seperate those out). In that same time period only 407 people that were registered on the site have let their subscriptions lapse.
Our current peak usage was last night with 304 being online on the forums simulatenously (that being within 60 seconds). Last month there were 19,401,748 hits on the website and 110,488,501 bytes of data were sent out across the net.
Just thought you may be interested in some of those statistics.