I’ve blogged before about headup, Semantinet’s semantic search add-on for Firefox. Well, the creative folks at Semantinet are forever doing new things (one reason I like working there, despite the traffic jams between Jerusalem and Herzliya :-), and the latest is the headup publisher’s widget.

This tool uses the same semantic search technology in a much lighter package. It is intended for bloggers and news sites, who can use it to integrate the ability to bring in additional information about entities it recognizes – places, people, companies, books, bands, and the like – into their pages without any need for the user to install anything. The tool simply adds slight dotted-blue underlines under words it recognizes, and if you mouse over these and click the icon that appears you get a compact pop-up that brings you basic summary information, photos, videos and news items about the entity you clicked – whether it be Paris, Barack Obama, IBM, Haifa, or Roberta Flack.

So – since this tool is so easy to integrate in a blog (one line of code, that’s all!) I went ahead and put it into this post. Check it out, and give us feedback in the comments: is this useful to you as a reader? How can it be improved? Your comments are welcome – and can influence the course of this new product’s evolution!