I suggest diligence and patience.
Diligence in setting up a posting schedule and sticking to it. While many will disagree frequency is also important.
Patience - it takes time. Work relevant link trades and keep your keywords flowing. Your traffic should increase with each month. If it starts stagnating, work a few more links in or increase the frequency of your posting.
Finally, make sure your RSS feed link is in an obvious place. Since there are still people who don't use readers, I also like to include the option of having my latest updates sent via e-mail.
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