free blogging software

Is there any free software that works like Yahoo Answers?

I want to put something on my website for blogs and I like the way Yahoo Answers looks and works. any suggestions?

http://www.wordpress.org/ is a blogging platform. http://joomla.org/ is a CMS (Content Management System) has a lot of different extensions to blogs, polls, images, comments and more.

The Challenge 2010: Module 2/Day 1 – WPD Signup

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