Now, you know commenting on blogs gives you the best results if you comment on blogs that are related to yours (relevant) and when you comment on recently-published posts (topical). The final factor in determining whether your commenting is successful is that you must leave meaningful comments.
It is no longer good enough (it never was, actually) to leave a comment like this:
Remember, the objectives here are manifold, but the main objectives are getting the site's publisher to notice and engage you, as well as to get direct traffic back to your own site by virtue of leaving compelling comments; visitors to the site you're commenting on may want to get to know more about you and they will follow the link in the comments back to your site. It happens all the time.
So, if you're in the sewing niche and you read a post on a fellow sewing person's blog and you want to make a comment, fully engage yourself in making a worthwhile contribution to the dialog.
Even though blogging isn't “real-time”, it can be considered a two- or multi-way conversation, so treat it as such. Add value to the original post by making an intelligent, non-promotional comment. You may say something like this:
I loved your idea about [this]! One thing I've had difficulty with in the past is [this] and I think your solution may be just what I needed to complete a project I've been putting off for quite some time. Thank you!
See the difference? You added to the conversation and you validated the author's post.
Always remember to make sure that your comments add to the conversation and aren't mere advertisement (in disguise). If you do this, not only will your comments have a high likelihood of approval, but they will also engage the author and his readers. Many good things will come from that outcome.
If you have any questions, leave a comment and I'll answer it.
Check out the Backlink Search Tool in the Chrome Web Store.