darrinb

Generates a template tag that allows you to easily display a snapshot of text. 
Useful for meta descriptions, post snippets, or your own custom block of text. 
Displays a snippet of text without having to use the <–!more–> quicktag.

WP Snapshot

Easily display a summary of post text or custom text.

Marvie Pons

Adds the “nofollow” rel attribute to the read more links. No complicated setup. Just activate and everything will work automatically!
Plugin by <a href="http://tutskid.com/" rel="nofollow ugc">TutsKid | WordPress Tutorials, Themes, Plugins, and More!</a>.
<h3>License</h3>
This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with WP Nofollow More Links. If not, see <a href="http://www.gnu.org/licenses/" rel="nofollow ugc">http://www.gnu.org/licenses/</a>.

WP Nofollow More Links

Adds the nofollow rel attribute to the more (read more) links.

WP Snapshot vs WP Nofollow More Links