faebu

With the Thickbox Announcement you easily can set-up an announcement, which will be displayed in a thickbox (lightbox). 
Several options let you control the apperenace and the frequency of the announcement. You can display any external 
content using an iframe or an inline content which can be edited using the standard wordpress editor.
<h4>Update Information</h4>
I’ve renamed my plugin since the plugin named looked very irritating. Since Version 1.0.3 the plugin is simply called Thickbox Announcement. 
If you are still using Version 1.0.2 no updates are displayed in the plugin overview of your wp installation. To perform an update 
you have to use the function Add New and search for this plugin. Click on Update to perform the automatic update.

Thickbox Announcement

With the Thickbox Announcement plugin you easily can set-up an announcement, which will be displayed in a thickbox (lightbox).

Elio Rivero

ILC Thickbox will parse your post content looking for images with the class ilctb. When found, it will display the image within a thumbnail and when clicked it will launch the original size image using Thickbox.
The modal dialog and the thumbnail wrapper is currently handled by ThickBox, which requires jQuery. Both Thickbox and jQuery are safely loaded from the versions included with WordPress using wp_enqueue_script.
This software is provided without warranty of any kind.

ILC Thickbox

Display an image as a thumbnail and launches Thickbox for a larger view.

Thickbox Announcement vs ILC Thickbox