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Hi Mozers, I have few questions: 1. If I am allowing advertising on my blog and people advertising by placing Ads, Contextual links in Posts, Should I make them No-Follow? If Yes, then I might lose a good amount of income coming from Advertising. What is the best practice without loosing Organic rankings. 2. If I make all the External Links No-Follow (simple wordpress plugin can do), then I may not have anyone to advertise on my blog. What is the advantage that I am going to get? 3. Keeping the Do-Follow on all external links, how it will effect my blog? when there is no spam and all quality content on the blog. Thank you