Through the http://www.blogbooker.com web service, you can create a full PDF book from your blog (if powered by Wordpress, Blogger or LiveJournal.
Without reading the details, it seems like the Atom export you can create is managed and formatted into LaTeX sources and rendered into PDF. At least, from the looks of the pages, it screams LaTeX. This brings back memories of my PhD, which was also created in that system.
It is nice to know that, so far, I have produced a book of almost 100 pages, with this blog (including TOC and title page). Not directly fit for publishing, though.
There is no need to present you the link for the PDF as the web-service erases everything afterwards. Should you really want the PDF, contact me.