Get yourself social and work at that. Although this might be a couple year old post the techniques are still somewhat valuable if done in the right way - but not all of them offer the highest benefits possible from internet marketing. With Google always making its changes techniques vary with sites being downgraded and upgraded, but in my honest opinion in what has been working for me over the past couple of months and year is definately being social. To be social you need to be yourself and if you are yourself you look natural and in turn natural backlinking is what google asks for. It's is to be social through forums, social networking sites, web 2.0's and other types of communities.