These are Loren McDonald's Email Marketing "Must Dos" for 2006:

1. Get relevant – dive into personalization and segmentation.
2. Resolve or minimize deliverability and rendering issues.
3. Redesign email messages for the inbox and users who view them in the preview pane and block images.
4. Optimize the beginning of the email relationship.
5. Get on the permission train.
6. Focus on metrics that matter.
7. Take better care of long-term subscribers.
8. Maximize search with email.
9. Test, test, test and improve.
10. Create an email marketing plan and align resources.

Read the full article here.

Source: EmailLabs Newsletter "Intevation Report"