One of the ways to make your blog successful is to figure out how you can be helpful to your readers - is there something you can do for your community that could make your site a resource for others?
A great example of a blog that does this beautifully is Author Casey McCormick's blog, Literary Rambles.
Casey has an Agent Spotlight series covering literary agents that represent Children's book authors. What Casey has done so well is that she's compiled much of the available interviews and internet sources on the agents and then made them available as a resource on her blog - making her blog one of the first places writers go when researching agents. Casey has done other writer's homework for us, and by providing this service, she's created enormous good will (in addition to traffic and platform and stature) for herself.
On my own "I'm Here. I'm Queer. What the Hell do I Read?" Blog, I've made being a comprehensive listing and source of information on all the GLBTQ Teen novels one of the major pillars of my blog (the entire left hand column) - and it's made my blog a unique resource for Teen readers, Librarians, and everyone else with an interest in GLBTQ Teen fiction.
So take it as a challenge: Is there a way you can provide a resource on your blog for the members of your community?
Namaste, and Remember to Keep it Zen,