I screwed mine up in the beginning.
(Tip: Have the skin finalized and the links to subscribe up before
you go live. Also: Don't use Blogger; you can't put the posts in reverse order, making it a pain to program a ToC.)
With your own blog, though, you have to get word out to others that it exists. (There are directories of web fiction that can help.)
With sites like FictionPress.com and FanStory.com, readers are already there, looking for things to read, so it's easier to find readers. (Tip: Make comments on others' stories.)