Choosing the TagCloud "skin" option from the skin section within the blog settings will show all the tags that you have on this Blog Element.  The more of a particular tag you have used, the larger the tag will be within the cloud of tags.  Clicking on the tag will take you to a list of all the blog posts that use that tag.

Choosing the Taglist "skin" option from the skin section within the blog settings will show all the tags you have on this Blog Element.  A number will be shown to the right side of the tag to show how many posts use that tag.  Clicking on the tag will take you to a list of all the blog posts that use that tag.

Choosing the Archive "skin" option from the skin section within the blog settings will show the months and how many posts and comments were made during that month.  Clicking on the month will cause all of the posts to be shown beneath it.

Choosing the List "skin" option from the skin section within the blog settings will show the Post Title that you typed in when you created your post.

Choosing the List With Body "skin" option from the skin section within the blog settings will show the post title, a summary that you manually typed in when you created your post, and the body of your post you typed in the text editor.

Choosing the ListWithSummary "skin" option from the skin section within the blog settings will show the post title and a summary that you manually typed in when you created your post.