One technique that I use to help rank my clients is to research the links that the competition has. If there is a way that I can also get a link from this page then it will almost always help out in my ranking. This is nothing new. But looking at it differently can give a new perspective.
Enter the idea of Link Seduction. Its a good idea to strengthen your site but the method described above also has another effect. Because the PageRank that is passed on from a page is divided up among its links, the more links on a page linking to your competitors, the less authority they will have. So from this perspective you could go through your competitors inbound links and identify if you can get links to your site or other sites, with the primary purpose of splitting the PR flow from the site.
Anyways I'd be curious to hear your thoughts on it.

