Your blog can be used in a number of ways. Businesses might use it to post product or service updates. Families might use it to keep their friends up to date. The possibilities are endless.
Don't forget to add Tags to your entries. For example, if your writing about your summer vacation to Colorado, you might use the tags, "summer, vacation, Colorado". As you post entries with similar tags, they can be linked together. This way visitors for your site can easily see all entries that are tagged as "vacation".