I previously wrote about my trivial fix to a user script for LaTeX markup in Blogger.1 Now that I've explored more, I know more options, but I still haven't found a single solution which does everything I would like.
My primary requirement is to easily typeset math which can be read not only on the website, but also from the RSS feed. To that end, the user script mostly works. However, it doesn't look nearly as nice as MathJax.
So, long story short, I believe there are a few more changes I want to make to the user script. I have decided to explore GitHub for code hosting. It's early yet, but it has a very nice interface.
So if you want to follow along, see my new repository.
1Clicking on the original link failed to automatically install the user script. I have fixed it.