Better Post Preview in Blogger
Blogger has now added a better Post Preview and a Preview Button on the Blogger Post Editor . The new Preview button opens up a new window showing a templated preview(the old preview function just showed a miniature preview without the actual templating) of the post that you are currently editing. This will let you see a complete preview of your post page even before hitting the Publish button.
In order to see the Preview Button, you should Edit / Create your post from your
Blogger Dashboard and hit the Preview button on your post Editor.
This is a screenshot of the preview page, which came up when i was editing this post. [Click the image below for a larger image.]