xrumer does not work, I had it for a few months, I got some traffic but it was totally not relevant to my niche. Their support never answers emails after they sell you the product. If you want my advice, I would spend money elsewhere, on some other products or services, but hey itz your choice. I also had lot of people emailing me back saying I was spamming their forumz and blogs and that they would report me, in one instance a person was saying he will hack my server if I didnt stop spamming his blog.