Blogs support a custom lists of snippets that are keyed phrases with optional links that can be referenced by keys within blog posts to reuse content and speed blog post creation.
To define a snippet, navigate to the blog, Manage > Manage Blog > Snippets, and click Add Snippet:
Fill in the following fields:
Click Create Snippet.
Snippets can also be edited and deleted from the snippet list on Manage > Manage Blog > Snippets.
Snippets can be used when creating blog posts and will be rendered within the body of posts only (not in the title or other fields).
If you created a snippet named name, you could render the snippet by typing [name]. When the post is shown in the community, the [name] snippet will be replaced with the text configured as the content of the rendered snippet.