While discussing the site Linkwheel, it is known that it offers a service that creates link wheels for you which is basically the ‘hub and spoke method’. The concept is that you have a money site, and everything else you create is for the purpose of linking to and boosting the ranking of this money site. The money site being where you promote and sell something, the spokes or other sites being relevant content that funnels visitors into that site. This model can be a lot of work in regards to creating and maintaining all of the content and properties, and getting the link structure right to and from each property. Done wrong it can ultimately penalize your money site in the major search engine but done right, you have success with it. linkwheel uses more than 60 different web 2.0 properties across unique IPs in addition to article directories, pinging, RSS directories, unique you tube videos, images etc. they say that all their work is done manually, not outsourced overseas, and that they are the only link wheel  service using 100% unique content. They have plans as low as $65 and monthly development and management plans starting at $165.