Lets discuss and comfirm which are the best blackhat tools. It can be both paid and free tools... For blog commenting, I vote scrapebox as the box. Even though the tool requires lots of patience and training, it can do lots of things. Maybe no hands seo can compete with it? For article directory submission, I vote AMR. For link directory, what do you guys vote? How about bookmarking/social bookmarking sites? And lastly press release sites?