A couple of comments. If you want to create a blog entry, you need to click on my blog or create content. As you are creating your blog entry, you will have the option to promote your entry to the front page. This is the default. If you click this option to the off position, the blog post will not appear on the front page. This choice appears in the middle of the top of the page as you create your entry. The same choice can be made when you create any other content -- such as uploading an image or posting to a forum.