Zemanta

I'm trying out Zemanta, which sits in your blogging editor and analyzes your text on the fly to suggest possible relevant links and images.

It remains to be seen how useful it'll be, but at it's text analysis, I can't help but be interested.  (And they've got an API!)

So far, the only negative is that I have to use the mouse to pull my sidebar down for tags for my posts.  That's not too horrible.