One year ago tomorrow I started tracking how many people come to this site. In that year, I've had over 20,000 unique visits. There's no way to know many people that represents, since most are no doubt regulars, but thanks for reading anyway.
My busiest single day (in November) had nearly 600 visits, after I published an article in TidBITS. Things are slowest on weekends, and between 3 and 4 in the morning in the Pacific time zone.
For perspective, there are plenty of big sites that get more than 20,000 visits each second.
[UPDATE: Scratch that! Even Google takes more than three whole minutes to get 20,000 visits.]