There are some bloggers out there that have a few blogs. That is a good idea, although it is only going to work out if a person has enough time to take care of all of his blogs. Each blog requires new entries from time to time and people are going to stop visiting a blog that does not any any new posts. Having a blog also requires dedicating some time to setting up hosting properly as from time to time something might stop working. A responsible blogger is also going to take care of spam and ensure that his website is secure. Overall, it can take quite a bit of time taking care of a blog.