Google Blogoscoped presents these ten rules of Good Blog Writing Style:
- Use descriptive headlines.
- Write in "inverted-pyramid" style (get to the point at the beginning, elaborate in later paragraphs)
- The first link is the one people click on, so make it the main link of your article.
- Reintroduce core ideas in longer posts.
- Use lists, images, tables and anything else that will make your artiles easier to scan.
- Use simple language if you're writing for a global audience.
- Credit your sources.
- Mark updates and changes.
- Spellcheck your posts and re-read them for clarity.
- Note that all these rules have exceptions; know when they apply!
I guess this falls under rule 10 (or is that rule 9?) :)