In 2005 there was a piece going around called Weblog Usability: The Top Ten Design Mistakes. The tip that really stood out for me was
8. Mixing Topics
If you publish on many different topics, you’re less likely to attract a loyal audience of high-value users. Busy people might visit a blog to read an entry about a topic that interests them. They’re unlikely to return, however, if their target topic appears only sporadically among a massive range of postings on other topics. The only people who read everything are those with too much time on their hands (a low-value demographic).
The more focused your content, the more focused your readers. That, again, makes you more influential within your niche. Specialized sites rule the Web, so aim tightly. This is especially important if you’re in the business-to-business (B2B) sector.
If you have the urge to speak out on, say, both American foreign policy and the business strategy of Internet telephony, establish two blogs. You can always interlink them when appropriate.
This convinced me to start a second blog, which was about Latin American politics, in addition to the personal blog I’d had since March 2004.
I don’t doubt the value of specialization for maximizing reach and readership, but I’m not trying to “rule the web.” So not everything I write here needs to be about the book and the project. That will also give my readers a better sense of who I am and I hope it leads to more posts.