nothing new but i have discussed some popular link building methods here: http://www.goarticles.com/cgi-bin/showa.cgi?C=2146887
Facebook, Twitter, Ezine Articles, can give you a Long Time benefit.You can also use WEB 2.0 for effective links.
you can find its best explanation, just click http://www.seosmarty.com/old-vs-new-link-building-strategies
I think one of the 'newest' link building strategies is article marketing. Articles that contain links within paragraphs are generally helpful for building links and also allow you to talk about your products/ services.