Harsh Agrawal

Content syndication is a process of amplifying your content to other blogs without hurting the SEO of your original content. You can let other blogs to republish your content in exact format with rel=canonical tag.
You can read about Rel=canonical tag here at pt.4: https://support.google.com/webmasters/answer/139066?hl=en
In this guide you can learn everything about using content syndication for content marketing: http://www.shoutmeloud.com/relcanonical-wordpresss-content-syndication-seo.html
Canonical SEO Content syndication plugin adds a meta box at post editor section. You can add permalink of post where the content was originally published. Popular blogs like bufferblog, readwriteweb are taking advantage of content syndication and rel=canonical tags.

Canonical SEO Content Syndication WordPress Plugin

Canonical SEO Content syndication plugin adds rel=canonical tag for content syndication. The meta box is added at edit post section.

ben.moody

Simply add your content syndication account details from your content provider in the plugin options page and start receiving content automatically.
<h4>Note</h4>
This plugin simply ‘pulls’ content from a content creator using the ‘Content Syndication Toolkit’ plugin.
You will require an account with a content creator using ‘Content Syndication Toolkit’ to pull content using this plugin.

Content Syndication Toolkit Reader

Allows clients to subscribe to content created using the 'Content Syndication Toolkit' plugin.

Canonical SEO Content Syndication WordPress Plugin vs Content Syndication Toolkit Reader