So, I recently found a service called SEO Gladius that builds out a tiered linking pyramid for $5. I've used it many times and am very happy with the results (I use it to power my tiered web 2.0s). I have two questions for you guys out there: 1. Would there be any advantage in using multiple link building services to avoid leaving a back link footprint? Or am I thinking too cautiously? and 2. Do you guys work with any other trusted services in the same price range that I could use to interchange with SEO Gladius? Thanks Guys!