Should I Remain DoFollow?

Should I Remain DoFollow? I have noticed the crap comments on my blog going up recently. It seems that commenting on dofollow blogs has become a popular link building strategy. The problem is people are hiring out their blog commenting, or using automated tools to post generic comments that don’t relate to the blog post, or add any value to the blog posts.

Is Your DoFollow Backlink Strategy Working?

Does the dofollow blog backlink strategy really work? A case study on gathering backlinks using dofollow blogs.