Fedora people can syndicate themselves by logging into their shell accounts on people.fedoraproject.org and create a file in their homedir called .planet or .planet.security.
My file looks like
name = Dan Walsh
face = http://dwalsh.fedorapeople.org/dwalsh.j
If the file is named .planet the blog will show up in http://planet.fedoraproject.org. .planet.security will show the blog in http://planet.fedoraproject.org/security.
I have a symbolic link between the two files so my blog shows up in both places. The security planet currently consists of most of the IPA guys and myself. Hopefully others will join as it becomes more well known.