Hello, I am building link pyramids for my SEO clients. I am using web 2.0 blogs to build a 3 tier link pyramid. My question is here. I have a set of blogs for the purpose of building link pyramid. For example blog 1, blog 2, blog 3 etc. Suppose that I have built a link pyramid using these blogs. Can I use the same blogs again for my another link pyramid project? Will google see it as spamming?