working on multi-blog support, https://github.com/rizumu/biblion/commit/ea54eb5e729f07be60d768eb094be1e24fbdf3b6
Regarding changes to the models:
My biggest concern is the section field on Post. I don't think it will be useful in a multi-blog system, I'd like to remove it and use tags instead, ie issackelly's taggit branch. I could see on a site with tons of blogs, that it might be useful to categorize the blogs by section, but not necessarily the posts. +1 for a tag field on blog + post and no sections.
Additionally I'd like to see post.author as a m2m post.authors would be forward looking. Though its uncommon, a quick google search for "blog posts with multiple authors" brought up enough conversations on the topic.
The last useful model change I've though of is comments_enabled for the post, potentially the blog too.
Oh, and on mightylemon we had a Settings model, but the only field was posts_per_page. I've added this directly to the Blog model, as well as a default author field. Default author would be useful if multiple authors are allowed to write a single blog post.
We're using the term blog here, but i'm also thinking news article, or research paper, which could easily have multiple authors.
On the topic of multiple authors, it might be worth looking at how the Atom spec models it. Basically they have an author and zero or more contributors on an entry.
Ok, will fine tuning the model fields to better match the spec: http://www.atomenabled.org/developers/syndication/
Now better support for RSS + Atom, following the specs as close as possible.