Zemanta and History Day?

From the SpellboundBlog on Twitter: "What if online archival descriptions used something like: http://www.zemanta.com to suggest tags, find related collections, and other content?"

Well, first I had go look at Zemanta to see what Jeanne was talking about. Check out their demo -- it's very interesting. Probably more useful for the general blogger than for an archivist (I wonder how many archives-related things it could suggest?), but a very interesting concept. I can see why Jeanne would be interested in using something similar to suggest tags (subjects) and related material from your own collections when you are describing something online.

I wonder if it could somehow be used by several cooperating archives to, for example, blog about History Day materials on a particular subject?