Hi fellow Black Hatters, I've recently started a new project (website). Trying to build a new authority blog in high ppc niche but also a very competitive one. All content is 100% unique and of high quality. Got it about 7 days now and was thinking of slowly starting to build backlinks. I have 3 other authority websites, all #1 on G, which bring me a nice monthly revenue, but it took me almost 4 years to reach this point since they are all white hat seo. My point here is, this is my first black hat project and I really need some advice on which services I should use here. Refer me one and tell me why you recommend it. Thanks for the help.