With Jump Breaks you can show just a snippet of your post on your blog's index page. Blogger will insert a "Read more" link to the full post page where your readers can keep reading.
There are a couple of ways to insert a "Read more" jump to your posts. If you use the new post editor (available on Blogger in Draft, or by enabling it via the Settings tab), you'll notice the "Insert jump break" icon in the editor's toolbar. Click this icon and the "jump break" will be inserted into your blog post at your cursor's position.
