• Rating: 7/10
• Release version: 1.1.2
• Licence: Open Source, GNU/GPL
• Homepage: http://www.s9y.org/
• OpenSourceCMS.com demo
• CMSMatrix.org listing

Although Serendipity was first released about 2 years ago I didn't really take notice of it until recently. And that's too bad because I found it to be a very good blogging platform.

• Rating: 8/10
• Release version: 2.1
• License: GNU/GPL, Open Source
• Homepage: http://wordpress.org
• OpenSourceCMS.com demo
• CMSMatrix.org listing

Wordpress is the most used blogging platform in the world, and for a good reason: it's easy to install, easy to use and is supported by a vibrant community that makes significat contributions. Many people use it to rant, blog about their passions or even run their online businesses.