Blog commenting is a great component of offsite SEO and white hat link building (provided it’s done right!) for numerous reasons. First off, leaving quality comments on industry blogs is a great way to build valuable links, both follow and no-follow, to your site. And even if they are no-follow links that doesn’t mean they can’t send visitors your way. I’ve even gotten a lead or two that found my site through a blog comment! Blog commenting is also a great way to drive people to your social profiles and build your social network. Secondly, blog commenting is usually the first step in any blogger outreach program.