Greymatter
Greymatter is the original open-source Weblogging and journal software. With fully integrated comments, searching, file uploading and image handling, completely customizable output through dozens of templates and variables, multiple author support, and many other features--while claiming perhaps the simplest installation process and easiest-to-use interface of any program offering this level of functionality--Greymatter permanently raised the bar for Weblogging and journaling. It remains the program of choice for tens of thousands of people around the world.
