Blog commenting ?
live comments on blogs with your website anchor text and its help you to index and ranking.
From the SEO point of view, blog commenting helps you to make updated your blog as well As make visible in front of the search engine as well.
Through blog commenting we can build traffic as well as link-building for our sites.
small question on the topic ... assume the site has been selling soft toys, blogs on the topic of soft toys, almost not, whether a bad sign for the search engines if the links on this site are in the comments to a whole other topic not related to soft toys?