Building a link might be  a piece of cake and takes only a short time to do, but if there are other interventions of any kind that can hinder the execution of the task, it will surely become more difficult to accomplish.  For example, when you want to build a link on a site that has plenty of regulations to follow, it will be more difficult and will take more time because there might be some things that you have to do or should avoid. This is the problem when you want to create a link in a site that is highly-standardized.

1.  Purchase the links from the best sites but limit your buying.

2.  Blog on the subdomain if possible. It may just the svere the chain that it is different.

3.  If only data sharing is possible and idea would be to do map mashups for you to be able to create applications that create authority backlinks.

4.  Try to create an application on other domains that will definitely lead back to your domain possibly in the form of a widget.

5.  If possible, blog only factual data.  Share only information that is not opinion- based.

6.  Give your opinions to different bloggers.  Let your articles be posed by them and use their domains to  lead  the visitor who is enticed back to your domain.