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This question is related exclusively to few proved spammers who have gained 1st Google search results for specific terms in the Greek market, targeting Greek audience. Why he looks spammer and very suspicious? For instance, the site epipla-sofa.gr, sofa.gr, fasthosting.gr and greekinternetmarketing.com look suspicious regarding their building link activities: 1. suspicious spiky link growth 2. several links from unrelated content (unrelated blog posts forom other markets, paid links, hidden links) 3. excessive amount of suspicious link placements (forum profiles, blog posts, footer and sidebar links) 4. Greek anchor text with the keyword within articles written in foreign languages (total spam) 5. Unnatural anchor text distribution (too many repetitions) So the main question is: Why Google is unable to recognize/trace some of these (or even all) obvious spamming tactics and still these spammy sites as shwon below reside on the 1st Google.gr SERPs. Examples of spam sites according to their link building history: www.greekinternetmarketing.com www.epipla-sofa.gr www.fasthosting.gr www.sofa.gr All their links look very similar. They use probably software to build links, or even hack authority sites and leave hidden links (really dont know how they could do that). Could you please explain or share similar issues? Have you ever found any similar cases in your industry, and how did you tackle it? We would appreciate your immediate attention to this matter. Regards, George