Simple enough question. I notice Stackoverflow has over 100,000 users -- huge congrats guys! Can you share exactly how old Stackoverflow is? Also, what percentage of the 100,000 are active? Can you provide any statistical breakdown on the activity?
Thoroughly impressed and looking forward to Stackoverflow's bright future.
UPDATE: I have found some fascinating statistics via Twitter for Stackoverflow. They do not provide a complete answer to my question, but some interesting details may be derived. For example, how many visits / person etc.