This feels like my method of blog post promotion. I read the posts where I comment carefully, if they fit with "me", I write a relevant and interesting comment

This feels like my method of blog post promotion. I read the posts where I comment carefully, if they fit with "me", I write a relevant and interesting comment (trying to add my grain of salt to whatever the post was about), and a link back to some relevant post in my own blog. Some days I feel like I'm spamming, some days I feel that I'm just doing what I should. Who knows? Try to be faithful to yourself: if you add to the conversation, I don't think that adding a back link is a problem: it can solve a problem for one out of a hundred. If it can, and would only bother one out of a hundred other readers, I don't think this is a problem. And no, I won't post a link to a relevant post now ;)