gerhard

This plugin is currently aimed at developers so it doesn’t come with any CSS or JavaScript, it just ads the DIVs for the columns, the rest is up to the developer’s imagination. This will allow developers to easily add column functionality to custom WordPress implementations.
<h3>Usage</h3>
How do users use it?
To split the content into columns, you simply add the shortcode [columnbreak] where you want the one column to end and the next one to start.
It will add a container around the columns with the class ‘ninja_columns’ and the class ‘colsid_{post-id}’ that will allow you to target the post or page specifically.

Ninja Columns

The plugin will allow users to easily split content into columns using short-codes.

Code96

This plugin easily integrates Genesis column classes into your WordPress editor. With the click of a button, you can now add column class shortcodes to your page or post. You will no longer have to know any HTML or CSS. Use the power of the built in Genesis column classes, with the simple click of a button.
Includes 2, 3, 4, 5, and 6 column classes.
Not a Genesis User, I have included the necessary CSS within the plugin. You can activate the optional CSS via Settings > Easy Columns or simply copy/paste into your themes style.css.
Code 96 offers <a href="http://www.code96wd.com" rel="nofollow ugc">WordPress Design</a> services and custom <a href="http://www.code96wd.com/premium-wordpress-themes/" rel="nofollow ugc">WordPress Themes</a>.

Genesis Easy Columns

Easily add Genesis column shortcodes to your WordPress editor.

Ninja Columns vs Genesis Easy Columns