The Advanced Custom Field Widget is an extension of the Custom Field Widget by Scott Wallick, and displays values of custom field keys, allowing post- and page-specific meta sidebar content.
For detailed information about this plugin and how it works, check out it’s wiki page at Athena’s Wiki.
For more information about Scott’s orginal Custom Field Widget, check out plaintxt.org.
License
Advanced Custom Field Widget, a plugin for WordPress, (C) 2008-10 by Christina Louise Warne (based on Custom Field Widget, a plugin for WordPress, (C) 2008 by Scott Allan Wallick, licensed under the GNU General Public License), is licensed under the GNU General Public License.
Advanced Custom Field Widget 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.
Advanced Custom Field Widget 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 Advanced Custom Field Widget. If not, see http://www.gnu.org/licenses/.
Screenshots
Widget configuration options
In place on my site displaying the Amazon associates links connected to items I've reviewed