An up-to-date number of .com registrations.
As I mentioned last night, Verisign has started released daily domain counts for both the .com and .net namespaces.
The information is now available at this page.
The data includes both domains that are in the zone file as well as registered domains that don’t have nameservers (and thus, don’t show up in the zone file).
As of this morning there are over 104 million .com domain registrations and close to 15 million .net registrations:
The number of unconfigured nameserver domain names has been estimated before. It appears the current number is well below some third party estimates, although those estimates are a half year old.