I suspect that the most successful blogs in terms of size of readership are fairly closely focused on a single subject. I read several technology blogs, such as Daring Fireball, Six Colours and MacStories, which all write mainly about technology with an Apple slant. They have all achieved success by keeping that focus.3
On the other hand, there are some highly enjoyable ones that take a broader scope: Tim Bray’s Ongoing, John Scalzi’s Whatever, or Wil Wheaton‘s blog; those authors write about whatever4 takes their fancy.
I, as you’ll have noticed, take the latter tack. But the question is, should I be more focused? Should I concentrate on writing about politics, say?5
It’s worth considering, certainly, but here’s the thing: I’m not actually sure what I would focus on. I don’t think I have the single-mindedness to keep to the same subject. I value the flexibility of the old-school, personal blog.
Which is just as well, since that’s what I seem to be writing. So there you go.