Great - this is very timely. I'm just writing up an example on my blog of how to use the HTML export to create a simple map of blog posts, but one that doesn't look so obviously like a map. I'll include the instructions above (with the appropriate credits, of course), along with a modified version of Andrew Wilcox's tip for including a map on a page using WordPress.
I'll try to complete the write-up tomorrow. In the meantime here's what the finished page looks like: