You do not have to be a leader right now to subscribe to one or two leadership blogs. You might be a follower right now but there are chances you could be a leader in future. It follows that reading quality blogs on leadership now will prepare you for top positions in future.
Searching for the Right Blog
You can find some of the best blogs on leadership if you just carry out a search for these blogs. You can even ask people who read these blogs to recommend some of the best ones out there and they will gladly do this for you.
Once you find a blog you really like, you should subscribe, join forums and leave comments in the relevant sections of the blog. Find the right blogs, read them regularly and you will learn many things from these blogs.