This article is very useful for those who have the Twenty Eleven theme. Note the Showcase Template and the Twenty Eleven Ephemera widget – A widget unique to this theme. Displays clickable titles of Aside, Link, Status and Quote posts.
By default the front page of your blog displays all posts (not pages) in reverse chronological order, with the most recently published post on top. If you do not want all the posts to show on the front page, then you can create a static front page called for example “Welcome” for your site and a “Blog” page for posts.