Posting on relevant high-traffic blogs can bring in a bit of traffic. While it won’t be anything monstrous, it can bring a steady stream of a few thousand visits a month if done well. If you want to really generate traffic from blog commenting, you will need to be the first commenter. To do that you can use a tool like Mention to watch for new posts in your on high traffic blogs, then quickly jump on to reply.
I don’t do this at the moment. Generally, what I do is after I publish a post, I search 2-5 variations of my post title. For example, on my post “Why I Moved from Dropbox to Google Drive” I did a search for “Dropbox vs Google Drive”, “Google Drive Review” and “Dropbox Review”.
I then searched just the first and second page of Google for articles that allowed comments, posted a quick response to the article and included my link. Don’t bother going past could of pages as 90% of people don’t visit the second page of Google. Sometimes your comment won’t get approved, but if your content is EPIC and RELEVANT you should get approved, no problems.
If you don’t feel comfortable posting the URL to your post in the comment, most comment systems allow you to include a link to your website that will be attached to your user name. Here you can include a link to your content, although it will probably get a lower click through rate.