Penov.org is using FeedBurner for its feeds. I am currently in process of migrating all feeds over to the Penov.org domain. Unfortunately, this happens at the same time as my hoster is migrating the site to different servers as well. Thus, the DNS entries will be somewhat flaky in the next few days. As a result, the new feeds might be unavailable.
I will do my best to make the transition as smooth as possible. Let's hope everything works out properly.