I've seen two techniques... The first one is when people rank super high with ezinearticles or a prlog page and link that to a sponsor via a redirect. They spam the living crap in terms of backlinks all over the net, crap loads of mini blogs all over, blog comment spam etc, but they are ranked high as heck!! Second technique is using ezinearticles and prlog to link to your blog review page or landing page... Second method is more about using the web 2.0 sites like ezines to boost your own domain in the serps... Funny enough sometimes i noticed the web2.0 sites rankign higher than the domain its supposed to boost. So which method do you prefer and why?