This plugin is outdated and might not be supported anymore
Show Widget Area Names (SWAN)

Show Widget Area Names (SWAN)

Details
View on WordPress

If you get confused by which widget area a widget is attached to when browsing your site then this plugin can help.
The plugin shows the widget area names on non-admin pages and posts. This adds the widget area title to widget $params[‘before_widget’]. This will only display for the edit_posts capabilities. You must use print $params[‘before_widget’] in your widget definitions to view the area name.
If the widget area is empty then no widget area name is displayed.

Recently added a jQuery toggle to the admin menu bar to quickly hide/show the widget area names. See +/- swan link in admin bar.

Details

Plugin code:
show-widget-area-names
Plugin version:
1.0.18
Outdated:
Yes
WP version:
3.4.1 or higher
PHP version:
or higher
Test up to WP version:
4.1.41
Total installations:
30
Last updated:
2015-02-10
Rating:
Times rated:
4
widgets