Blogging: How do you estimate your audience?

Dave Pollard: If you’re a blogger, how do you anticipate what your audience might look like? Pollard’s essay on blog traffic and stats offers some ways to think about blog metrics, traffic and unique users. Dave estimates that only about 20,000 blogs (a mere 0.4% of all active blogs) have a sizeable audience (more than 10 regular visitors and more than 150 hits per average day). He projects that based on the latest Pew numbers, traffic to blogs might look like this:

Total
Hits/Day
Average
Hits/Day
per Blog
Minimum
Hits/Day
per Blog
Average
Aggregate Reader
Attention/Day
per Blog
100 A-list bloggers 15 million 150,000 15,000 1700 hrs
2,000 B-list bloggers 5 million 2,500 1,000 62 hrs
18,000 C-list bloggers 9 million 500 150 13 hrs
80,000 up-and-coming bloggers 8 million 100 50 2.5 hrs
5 million remaining active bloggers 15 million 3 0

Dave sez: “If you’re an average A-list blogger (those getting at least 15,000 hits per day), your 150,000 40-second visitors in aggregate are spending 1700 hours per day reading and commenting on your blog. The average B-list blogger (those getting at least 1,000 hits per day) is getting 62 hours per day of 90-second-per-visit aggregate reader attention, the average C-list (150-1,000 hits-per-day) blogger 13 hours per day of aggregate reader attention, and the average up-and-coming (50-150 hits-per-day) blogger 2.5 hours per day. ”
More here.