Piaras Kelly with 12 annotated tips for quality blog content. Here's the brief versions:

1. Use catchy titles
2. Be unique
3. Make sure to credit your sources
4. Think before you post
5. Stay on topic
6. Link, it’s polite
7. Be conversational in tone
8. Respond to comments
9. When to post
10. Be controversial
11. Blogging is not email
12. Assuming makes an ass out of u and me

Check out the expanded versions for the scoop. via RSS Blog & Micropersuasion.