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.

Have you ever wondered how to make sure that you provide the opportunity for people to share the great articles on your blog to their social networking sites?

You might recall I wrote about one tool recently that you can add to the side bar of your business blog that allows people to save PDF’s of your articles and even email them to others.

A plugin that you might want to consider for your business blog that is becoming increasingly popular is ShareThis. ShareThis is available to use across a host of blog platforms including WordPress.org and TypePad.com

You’ll usually see the ShareThis logo at the bottom of an article or blog post.

When you click on it you will see you have several options:

• You can post the article and share it to your favourite social networking sites such as Digg and Ma.gnolia
• You can make sure that your friends at your social networks such as Facebook and Twitter know about the post or article you have read
• And you can even email yourself or others a copy.

Of course it’s not just making sure the readers of your business blog understand what the ShareThis logo means - it does rely on us as content creators writing content that people want to pass on to their friends or keep as reference material.

So why not consider adding ShareThis to your business blog? And if you have added the ShareThis plugin to your business blog, perhaps you can share with us your experience of it as a tool to encourage people sharing your great content?

Have you ever come across a business blog and have wanted to print out a blog post but find that there is no print icon on the blog page?

I always think that we need to make it as easy as possible for people to access our content from our business blog so one of the things I did some time ago on my main blog was to add some plugins so that people could then print a blog article and also email articles to others.

However I recently came across a service that enables us to guide people to alternatives to print pages yet still makes your content accessible to readers and enables you to virally market your blog to others with a tell a friend functon - and it’s free!

The ECO-SAFE Merit Badge can be added to your website and offers the opportunity to website and blog visitors to:

• send themselves or other an email of the blog article
• send themselves or others a PDF of the blog article
• download a PDF of the blog article.

Why not add the ECO-SAFE Merit Badge to your business blog? That way you are being kind to the environment and enabling others to share your great content with potential readers and potential clients.

Oh I almost forgot to let you know, you can also register for free iTunes music of your choice when you add the ECO-SAFE Merit Badge to you blog or website.

With all the recent outages and downtime over at Twitter (no doubt stirred up because of my recent article on How to Use Twitter for Business), many people have been checking out Plurk, a similar but different approach with the same 140 character message limit.

Plurk has some nice add-ons that separates from Twitter. There’s an interactive timeline that shows threads and makes it easier to follow a conversation. There’s karma points for signing up people. You can create “cliques” to better organize friends. It doesn’t constantly crash (so far.)

Is this a business tool? Who the hell knows. I doubt the telephone appeared like a good business tool out of the gate. Is it fun to use? Definitely.

There are game-like features to it that make you want to invite more friends, post/plurk more often and get more involved. I’m not giving up my twitter account, dropping Facebook or giving up my blog for plurk, but like an 80’s arcade video game, I’m sure it’s going to get a few more of my quarters.

If you’d like an intelligent, detailed explanation of everything Plurk check out Frank Martin’s post on The Question of Plurk.

And, if you’d like to play around in Plurk, click on this invite or come visit my page on Plurk.