Our latest plugin and ebook is called WP Curator, which allows super admins to hand select specific posts in a network and promote them to the main site. If you’ve ever been to the front page of WordPress.com, you’ll see they have hand selected posts from across their network.
This is one way it can be done – with the WP Curator plugin. Once activated, it shows a “promote post” link only to super admins. This way, when surfing your network for excellent content, you can reward your users by highlighting them on the very front of your site. How you format those posts when they get there is totally up to you. You can also use any theme you like – no need to switch to a new theme. We’ve even included some code snippets to use with the Genesis Theme Framework and its child themes.
This plugin requires WordPress 3.1+ with multisite enabled. Get it here, and have fun!