Popular sites that using textpattern as publishing system included on their website, one of them is Olson Sundberg Kundig Allen Architects, it is an internationally renowned architecture firm whose projects have included major museums, residences, colleges and public buildings. Its portfolio section details their 35-year history of projects, along with all the beautiful imagery to back it up.

Mosman Library is another one:

Mosman is an historic harbour side area of 8.7 square kilometres just north of the Sydney CBD. Mosman Council administers and services this area for the benefit of residents, businesses and visitors.

• B2Evolution
  b2evolution is a powerful blog tool you can install on your own website. It includes all the features of traditional blog tools, and extends them with evolved features such as file & photo management, advanced skinning, multiple blogs support as well as detailed user permissions…Not to mention third party plug-ins!
• WordPress
  WordPress started in 2003 with a single bit of code to enhance the typography of everyday writing and with fewer users than you can count on your fingers and toes. Since then it has grown to be the largest self-hosted blogging tool in the world, used on hundreds of thousands of sites and seen by tens of millions of people every day.
• Wheatblog
  Wheatblog is blogware: it’s a web-based content management system for maintaining online blogs, journals, news pages, and about anything else you can think of writing down. It allows reader interaction with a comment system, and generates valid RSS 2.0 feeds. It is powered by PHP and is compatible with the MySQL and SQLite database systems.
• Lifetype
  LifeType is an open-source blogging platform with support for multiple blogs and users in a single installation.
• Blosxom
  Despite its tiny footprint, Blosxom doesn’t skimp on features, sporting the lion’s share of features one would find in any other Weblog application or full-blown content management and publishing system. Blosxom’s plug-in architecture allows the core of Blosxom to remain small and sleek while providing room for extension and integration into different environments and uses.
• ExpressionEngine
  ExpressionEngine is a flexible, feature-rich content management system that empowers thousands of individuals, organizations, and companies around the world to easily manage their website.
• MovableType
  Movable Type runs on a Web server where you use it to set up and add content to your blog and build the blog pages that visitors see over the Internet.
• NucleusCMS
  A PHP/SQL blogging tool which resides on your webserver. Includes multiple weblog capabilities, and RSS syndication.
• PivotLog
  Pivot is a web-based tool to help you maintain dynamic sites, like weblogs or online journals. Pivot is released under the GPL so it is completely free to use. It is written in PHP, and does not require additional libraries or databases to function.
• Serendipity
  Serendipity is a PHP-powered weblog application which gives the user an easy way to maintain an online diary, weblog or even a complete homepage.
• Textpattern
  Textpattern is a web application designed to help overcome these and other hurdles to publishing online, and to simplify the production of well-structured, standards-compliant web pages.
• Eggblog
  Eggblog is a free php & mysql package, allowing you to create your own online website, journal or weblog (blog).
• Flatpress
  FlatPress is an open-source standard-compliant multi-lingual extensible blogging engine which does not require a database to work.
• Loudblog
  Loudblog is a sleek and easy-to-use Content Management System (CMS) for publishing media content on the web. It automatically generates a skinnable website and an RSS-Feed for Podcasting. Just upload your audio/video files, add some notes and links, and you’re done!
• WB News
  WB News is a PHP and MySQL News System developed by Webmobo.

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