hashsalacop

A simple plugin that allows you to copy or cut paragraphs from your site’s main content to the clipboard to use elsewhere. or you can customize depends on your needs
Plugin Features: 
1. Copy Content and paste 
2. Copy and Cut content and paste 
3. Its easy to use. 
4. Tested up to latest WordPress

CLIPBOARD

A simple plugin that allows you to copy or cut paragraphs from your site’s main content to the clipboard to use elsewhere.

jneuveglise

This plugin will cut your RSS feeds at the “more” tag. It will enable you subscriber to see what you want them to see as on the home of your blog.
It will also add a customizable link at the bottom to the complete article and optionally a fully configurable footer to avoid robots to steal your content.
It will not work if you choose ‘partial’ feeds in the WP configuration.

RSS No More

This plugin will cut your RSS feeds at the 'more' tag or custom [rss-cut] tag and optionally append a footer to each article on your RSS fee …

CLIPBOARD vs RSS No More