Site is engaging and makes you want to come back to it. Point of view is clear. Site is free of bias, or the bias is clear. Author is identified. You can easily find out more about the author and the author's authority.
Information is current, timely.
Tells you when it was first published, including the year. Tells you when it was last updated, and how often it will be. Tells you what was updated. Criteria for inclusion of material are available. Site is persistent.