I have been using lyx for a while to produce math documents. I really like the way it works and am quite happy with it.
Recently I started a blog (http://mth49601spring2010.wordpress.com/) to post lecture notes for a course I am giving. I chose wordpress because they have some latex support, but their online editor is not so nice. I discovered a python script (http://lucatrevisan.wordpress.com/latex-to-wordpress/) that converts latex to html with wordpress latex markup. So my current workflow is lyx -> latex -> wordpress. I imagine that it would be easy to implement the script within lyx to avoid the middle step. This would be quite useful for math bloggers (although I guess many others just use latex and aren't as allergic to the command line as I am). If I had a good idea how to do this I would, but I am not a programer and must resist being drawn into such projects as they keep me from writing lectures, etc. Thanks for all the great work producing lyx! Sincerely, Jeff Schenker