If you want to be successful as a blogger, you need to find your niche. This is not as easy as it might seem.
You need to think about what you are passionate about, and then find a way to share that with your readers. You also need to find an audience that is interested in what you have to say.
There are many ways to find your niche. You can Google it, or take a look at blog indexes like Bloglines or Technorati. You can also ask other bloggers what their niches are.
Or, you could try doing some surveys or focus groups on your topic. Once you have a good idea of what your niche is, start writing about it regularly.
It can be hard to stay focused on your niche all the time, but it is important if you want to be successful as a blogger. If you stick with your niche and write quality content, your readers will eventually find you and join your blog community.