I am curious as to what types of backlinks work best for local seo. As in would Web 2.0's work well? Would niche relevant blog comments work well? Things of that nature. I was thinking of doing what I would usually do for national SEO, and do Web 2.0's, then blog comments and social signals going to those web 2.0's. Just do a multi tiered backlinking pyramid. I'm just curious as to if that would work well for Local SEO. I'm thinking it would work well for organic rankings, but I don't know if it would help out in the 7 pack.