Hi, I'm Eden, a Linux Systems Administrator and entrepreneur here in Brazil.
I currently write a blog about linux in Brazilian Portuguese and post some linux howtos in my wiki. The blog software is wordpress and the wiki software is dokuwiki. I'm very happy with dokuwiki because its easy to use and install/backup. I also like the features.
These run in a linux machine CentOS 5 or Red Hat 5 I think, I don't have root access :(
http://linuxfacil.org