The difference between an SEO who has tested commenting on blogs and one who hasn't is that the one who hasn't says it doesn't work and the one who has keeps quiets about it and keeps commenting. As an SEO it also marks you out as to whether they are in the Premier League or still slugging it out for the pub team. Some SEO "experts" will see say, "nofollow", doesn't pass … [Read more...] about Is Blog Commenting Useless for SEO