Hi,
I still get questions on this now and then, so here are my details.
Planet Fedora, the aggregation of blogs at
http://planet.fedoraproject.org is for a while, a self service scheme.
If you have a Fedora account (this is trivially easy to get by clicking
through
http://join.fedoraproject.org and joining one of the groups),
then follow
https://fedoraproject.org/wiki/Planet_HowTo to add your blog
feed. Note that if you discuss things in the blog, you don't want to get
aggregated, it is useful to tag your blogs and put in the appropriate
rss feed instead of the generic one.
Rahul