I will identify the Niche Relevant blogs or sites which accepts manual commenting and publishes them after moderation. The blogs identified by me will contain very less outbound links from them (less than 20). Since the comments and links are published after moderation, very low chance of spam links. The charges will vary according to the PR of the Page (Yes Page PR and not home page PR) providing back link to your site. The commenting platforms will be in various footprints like wordpress, drupal, commentluv, intense debate, disqus and facebook powered comments. Also the links will be mixture of do follow and no follow. Having only do follow or no follow links will make your link profile unnatural. Also do avoid over optimization penalty some links will be built without anchor text by just having your domain url. Please contact me now to know the rates.