Creating a blog is not difficult, but marketing it, is a whole different ball game. If you don't know what to write about, you can get inspired by daily news and things which people are talking about these days. For example: what catches your eyes in headlines, what do you think about what is going on in news these days or your favorite things. You can write about anything you want and start to promote your blog on social media sites and let your friends and family know about your blog.
SEO- Finding Ideas for Blogging