A snippet of code packed in a plugin to render the WordPress RSS widget as a shortcode.
This allows you to display external or related content on its own page.
In combination with Yahoo! Pipes, or another RSS magic service, you can create nice collections of articles for your readers on a separate page.
This plugin does not create WordPress posts from feed items.

WordPress RSS Shortcode

A shortcode to render an RSS feed in a post/page

Matthias Pfefferle

ActivityStreams (<a href="http://www.activitystrea.ms" rel="nofollow ugc">activitystrea.ms</a>) support for your WordPress-blog
ActivityStreams is an open format specification for activity stream protocols, which are used to syndicate activities taken in social web applications and services, similar to those in Facebook’s Newsfeed, FriendFeed, the Movable Type Action Streams plugin, etc.

ActivityStream extension

ActivityStrea.ms feeds for WordPress (Atom and JSON(-LD))

WordPress RSS Shortcode vs ActivityStream extension