Blog commenting is one of the best components of a link building campaign for numerous reasons. Aside from the obvious value of the link, there is a lot of long term value associated with developing a strong blog commenting campaign that can impact the overall success of your SEO and website.
Here are 4 reasons why you should amp up your blog commenting
1. Helps develop a relationship with the blogger
A blogger outreach program isn’t something that new sites should be worrying about, but for established sites that have a little SEO under their belt, it’s the next step in link building. By routinely leaving well-written and valuable comments on a blog, you are actively contributing to the overall success of that blog. If you develop a relationship with that blogger you might be able to ask for a product review or guest author opportunity on that blog in time.
2. Allows you to interact with other commenters 
Blogs are inherently social. Aside from the link value of blog commenting, a blog is also a great place to connect with other commenters. Some of them may be other industry professionals, but it is also possible that some are potential clients. Instead of commenting on the blog itself, why not create a response directed at another comment. Sometimes the dialogue that comes out between two commenters (provided it stays civil) can be more interesting for readers than the blog post itself!
3. No shortage of blogs to comment on
Depending on your industry, there may be hundreds, if not thousands, of blogs for you to comment on. For instance, if you run a website that sells high-end kitchen equipment, you can comment on professional chef blogs, restaurant blogs, foodservice blogs, recipe and cooking blogs, blogs for the home chef and so forth! Think about who your target audience is and what kind of blogs they might be reading. The more angles you take the more blogs you’ll find to comment on.
Because there are so many blogs for you to work with, you don’t have to worry about relying too heavily on the same blog for your blog commenting. If a blogger sees the same person commenting over and over again, they might start to think you are trying to spam their site. Commenting on different blogs also helps diversify your link portfolio and makes your site look more valuable in the eyes of the search engines.
4. Develop reputation as industry expert
By commenting on a variety on industry-related blogs, you are increasing your online presence and building brand awareness. People start to remember your name or your company name from the comment fields of blogs they read. They learn that you are an industry professional and someone who can be relied upon for good information.