You can see a demo of Pressmark installation on bookmark.alexgirard.com

Pressmark includes Wordpress Prologue theme, which has been used by Wordpress team to have a twitter-like dev-blog.

Prologue include Gravatar support, so go to upload your avatar on gravatar.com to have a nicer output!

If you feel like adding your own modification to the code, you can clone/fork the project on Github: http://github.com/alx/pressmark/. All contributions will be welcomed!

Ideas to extend Pressmark:

• Bookmarlet, Jabber bot for easy posting;
• Import from bigger social-bookmark accounts (delicious, magnolia, …)
• Cross-blogging to decentralized bookmark management in various blog spaces

Installation

• Get Pressmark sources:
  • Download it from Github
  • If you’ve got git installed, clone it from Github (to easily get last updated)
    
git clone git://github.com/alx/pressmark.git pressmark

• Move the source to your webserver, ask a geek how to do it if you don’t know
• Wordpress configuration: copy ‘wp-config-sample.php‘ to ‘wp-config.php‘ and fill up the MySQL database information.
• Access to the website where you’ve installed Pressmark, and begin the “2 min. installation” from Wordpress
• Now that your website is ready, go in the administration pages and activate the following options:
  • In ‘Design‘: select ‘Prologue‘ theme;
  • In ‘Setting‘: select ‘Anyone can register‘ and set the ‘New User Default Role‘ to ‘Author‘ if you want your users to post links;
  • In ‘Plugins‘: activate ‘WP-OpenID‘ plugin