Digg.com’s content publishing model is no doubt one successful Web 2.0 example. I’ve written an entry about a year ago, listing some 15 sites that use similar digg.com concepts. Now that one year passed, god knows how many site out there now practices the digg model. But if you are still thinking of jumping on the bandwagon, here’s 6 free scripts that allows you to setup something like Digg, where stories are submitted shared as voted by users.

Pligg

Pligg is one of the most well known digg clone. It runs on PHP/MySQL, free and its currently on Beta 9.8. Read more about Pligg.

PHPDug

PHPDug is very similar to digg.com, particularly its dig buttons. It runs on PHP/MySQL, supports 12 languages (English, German, French, Spanish, Portuguese, Thai, Chinese, Arabic, Dutch, Indonesian, Turkish, Persian) and here are its features:

• Easy to edit html template files
• Spam fighting captcha security codes
• Simple wizard installation
• External dig buttons
• Easy to edit language files
• No need to setup a cronjob
• Dig up/down comments
• Powerful Admin panel for controlling your site
• Automatic thumbnail retrieval for youtube and google videos
• Automatically add stories from RSS feeds

Check out the front demo, as well as the admin demo (user/pass : demo/demo)

The above two are by far few of the popular ones, but if you are intending to look for more, here’s another 4 more digg clones scripts with however less online support. Authors’ descriptions in quotes.

diggCLone

The diggCLone project is an effort to reproduce the functionality of the oh-so-popular social bookmarking site, digg.com. We’ve changed up a few things about it, but kept how the site basically works. Right now, we’re still in some of the early stages, though, so some of the functionality isn’t there yet.

Download diggClone

Upwarded Source

Upwarded.com wasn’t as successful so far as I was hoping, so I’ve had a hard time adjusting the ranking algorithms… there just isn’t enough data coming in to test it. In any case, I’m releasing the full source for Upwarded.com [ZIP] under a GNU GPL/ CC license. All you need is Apache/ PHP5/ MySQL; for more see the contained “readme.txt”.

Download Upward Source

Loudle

A “digg like” news submitter/voter (non-hierarchical editorial control for you wordphiles) created using industry standard PHP and MySQL.

Download Loudle

GrabTheMic

GrabTheMic is an Open Source implementation of community-driven news sites such as Digg (http://www.digg.com) and Reddit (http://www.reddit.com). It is powered by Ruby on Rails.

Download GrabTheMic