Let's assume you're not going to get any links from CNN or Microsoft.com, so big authority sites are out. And you don't want to do spammy blog comment/forum profile type of stuff because you're white hat, or because it's been devalued after Panda, or for whatever reason. Then there are private networks, but say you don't trust those because you've been fucked over before by people taking them down/selling them/whatever. So that leaves linkwheel type stuff and article marketing. Am I forgetting any other strategies? Using only linkwheels and articles, how much of a chance do you stand at ranking? Assume time/money is no issue and you can build the linkwheels as big as you want. Can you be competitive in an average keyword using only linkwheel type backlinks?