One of the coolest things about business blogging is the social interaction and community that is built when readers leave meaningful comments. Like a good story, a post elicits a response from the reader. As your community develops, the value of your brand increases. But this warm and fuzzy feeling that people get about your brand as they interact with you on your blog can be hard to measure and quantify. That’s where blog interaction metrics come in.

Building a blog to one or more interaction metrics can help you focus on what’s important - brand engagement.

Do you measure a successful post by the number of readers, bookmarks added to del.ic.ious, diggs, comments, number or quality of backlinks, or a combination of all the above? Some metrics have a place in your blog marketing scorecard, like number of comments. And some do not, like number of trackbacks (unless you like counting spammers — and that you could do all day!). Because the last thing you need is just more data for the sake of data.

Avinash Kaushik came up with some really nifty blog success metrics that really resonate with me. I bet they’ll resonate with you too. They are:

• Raw author contribution (posts per month and words per post)
• Audience growth (onsite & offsite, visitors and unique visitors)
• “Conversion” rate (comments per post)
• Citations (blog inlinks, Technorati rank)
• Ripple Index (# of unique blogs linking to your blog)
• Cost (time, hardware/software technology, opportunity cost
• Benefit / ROI (comparative vs. direct vs. “non-traditional” vs. unquantifiable)

As you start measuring the above and then gauging the success of what you’re doing on your blog based on these metrics, you can tie your activities back to something more meaningful than just the “hits” you’re generating.

If you want to learn more about metrics, I encourage you to watch the archived recording of a “Website Metrics and ROI” webinar that Avinash and I presented last year. No registration required. Just click and watch (or download). It’s 100 minutes of the two of us talking about our favorite metrics — not just for blogging, but also email marketing, web marketing, search marketing, and more. And if you just want to scan over our Powerpoint slides before you invest 100 minutes of your time (and I don’t blame you — time is precious!), here’s the PPT file. Enjoy!

What blog metrics do you value most? How do your readers interact with you? Do you have any particular reporting tools you recommend? Your interactivity is welcome and invited.

Whether you’re just starting out in the blogosphere or you write for an established blog, you’ll need an angle to set your blog apart from the rest. Ideally, this theme will carry through all your posts, injecting the blog with a unique style and personality (e.g. snarky, witty, professorial, egotistical to the point of humorous, self-deprecating, nihilistic, voyeuristic). Your angle could also be in the way you present your content, too. For example, you might offer video blog posts that are extreme close-ups or you might include hand-drawn illustrations with your posts.

An angle helps make your blog remarkable, which is a laudable goal for any marketer. In his book “Purple Cow,” marketing guru Seth Godin stated that being “remarkable” doesn’t mean you (or your blog) needs to be the best, it means that you need to “be worth remarking about.” Seth also said that the opposite of “remarkable” is “very good.” In other words, having a “very good” blog just doesn’t cut it — not when there are hundreds of millions of other blogs out there too.

Another way of thinking about a “hook” or an “angle” is to think about your blog as “link bait.” Link bait is content that is so funny, so interesting, and so useful that it becomes irresistible to other bloggers and site owners to link to and “remark” on. Nick Wilson revealed 5 “hooks” in his landmark post on link baiting:

1. humor hook
2. news hook
3. contrarian hook
4. resource hook, and
5. attack hook

Link bait can take the form of Top 10 lists, humorous videos uploaded to YouTube, checklists, cartoons, tools, widgets and blog plugins — to name a few.

One business blog that I think really nailed this concept is Sparkle Like the Stars, a blog owned by jewelry retailer ice.com. The blog is snarky, irreverent, fun, voyeuristic, trendy and useful — all at the same time! This blog’s hook is paying off, in the form of a loyal following.

We, at Netconcepts, decided to follow in the footsteps of Sparkle Like the Stars to create a blog about shoes we affectionately named, “The Shoe Paparazzi.” The idea behind it was to fuse footwear with the “sport” of celebrity watching in order to capture and keep readers’ interest. At this point it’s still just an experiment, a pet project of Netconcepts that wasn’t commissioned by a client, but is something we hope can be used in the future to prove the case for the “celebrity watching hook” as a viable angle for online retailers.

As far as blogs go, I’m not 100% certain we’ve hit that right hook/angle yet to build that loyal following every blogger dreams of. I put it to you, my fellow bloggers, do you think our Shoe Paparazzi experiment is link-worthy? What’s your blog’s hook, and how’s that working out for you? Talk back via comments.