When I give talks about nonprofit blogging, I often use the Case Foundation's blog as an example of a juicy blog.
• Each post is illustrated with a photo
• It's featured on the home page.
• Posts cover a range of topics (e.g. TED Fellow profiles, social media tips, reporting back from events, calls to action).
• Multiple staff members are bloggers, which takes the weight off of one person.
• It's easy to share. Each post has buttons at the top for people to share it on Facebook, Twitter, via email, etc.
• It's easy to subscribe. Icons for their RSS feed, Twitter feed, Facebook page, and newsletter are featured at the top of the blog.
• The author of each post is visible, rather than saying that all of the posts are by "the Case Foundation."
• It runs series (e.g. Dressed to Give, Weekly News Roundup, TED Fellows Friday).
• It has a blog roll.
• It's well-written.
• It features guest posts.
• It has a visible post archive.
• It uses video.
• It asks questions readers can respond to.
• It helps readers take action.