Web Services Directory

With AppLinks to documents or files, your Blog page can become the equivalent of a public or private folder for documents. A Blog page can become a collaboration center with team access to all the documents and applications your team needs, available from any Internet-connected computer.

BlogBack allows visitors to comment on your weblog posts, without the need to host the service yourself.

Blogrolling.com provides a friendly and easy to use web interface for you to manage link lists on your blog or even regular website.

A slight exaggeration but if you are looking for a starting point in understanding blogging then this a good place to begin.