When link building, blog commenting is an effective way of getting quality inbound links and site traffic. You can get a quality inbound link from an authoritative source. The key to good commenting is to stay away from spam. Put some thought into your comments. A well written comment that adds to the value of the page will give the blogger incentive to leave your comments in place and ask you for more. One of the keys to commenting is understanding the “nofollow” attribute.
Important Note on Dofollow and Nofollow Blogs
When commenting on a blog, remember that most blogs use the “nofollow” tags to keep from passing link juice or page rank to commenter’s websites. This helps prevent them from dealing with enormous amounts of spam. I still comment on these blogs, but only when the site has good traffic and I think I can generate some traffic by my comment.
On the other hand, some “very smart” bloggers allow link juice to be passed through comments. The reason it is smart is because Google likes for content to change regurlarly and good comments can add value to a page and have surfers coming back again and again.
In order to tell if a site is using the “nofollow” attribute, you have to look at the source code of previous comments:
<a href=”website.com” rel=”nofollow” >website</a>
This can be a very time consuming process because you have to find blogs with good pagerank that are related to your website, than you have to determine if they pass link juice. I did stumble upon a tool which I have found very effective. Basically, it does all the research for you. It does a search of blogs that are related to a specific keyword. Usually my searches return more than a thousand blogs. It gives you the pagerank of the blog home page, the pagerank of the actual blog page and most importantly it tells you if the blog is a dofollow or nofollow blog. I haved saved countless hours since I started using Fast Blog Finder (aff. link). The cost is $47. They have a free trial if you want to give it a test spin.
Keyword Usage
Identify an author’s keyword by looking at the page’s title tag and the content of the page. If possible, use the keyword in your post and if you are going to use a link, in your link as well. This gives the author a good reason to leave your comment in tact because your comment is benefiting his content.
Ask a Question
By asking the blogger or another commenter a question, it shows that you are involved in the conversation. Try asking something intelligent about the post. For example, if you are going to ask a question about this post, you could ask “do you really think Google pays attention to nofollow tags”. I would of course answer you with an explanation and a source for the explanation.
Say Something Edgy
If you see a comment that is just stupid or not well thought out, spend some time ripping that comment to shreds. People love controversy and usually you can start a pretty good debate that might end up with links to the blog you posted the comment on. If it gets really out of hand, you can do a post on your blog in response and post a link in the comments saying you have a detailed answer at your blog.
Say Something Intelligent
I would rather leave a well written comment on a blog than five not so well written comments on other blogs. By sounding intelligent and adding value, your comment can be a like a little nugget of gold for the blogger. A well written comment drives traffic to your site because readers will click on your link just to see who you are.
Recently, I left a comment on an entertainment blog. Two days later I received an email from the blog owner saying that she appreciated my comment so much that she would like for me to come back and comment more often. She also gave me a link from her front page which has a higher page rank. So I got two quality inbound links from her site. Thats the power of commenting.