Is 15 links (1 month link building) enough?
That depends on your industry and the level of competition you face. In most cases, 15 links will not be enough. Even in industries where competition is currently low, you cannot rest on your laurels as sooner or later your competitors will find out about the joys of ranking well on Google and start optimising and building links to their site, at which point you will need more than the initial 15 links to remain competitive.
