I have to say, I am always suspicious of Google, thats why I haven't put a ton of effort into backlinking yet. They could change their algorithm any day and make all that go away. I much prefer building organic traffic through articles since it seems much more stable. I mean for a measly 1000 articles spread over 3 or 4 sites, that earns me a few hundred visitors a day. I mean is 1000 backlinks going to do the same? and even if I did bring my page up the SERPS with backlinking, these high PR sites are always changing so I would have to keep backlinking forever. Articles seem much more stable.